402.9 is what percent of 79 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 79 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 79, so we can write it down as 100%=79.
4. We know, that x% equals 402.9 of the output value, so we can write it down as x%=402.9.
5. Now we have two simple equations:
1) 100%=79
2) x%=402.9
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=79/402.9
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 402.9 is what percent of 79

100%/x%=79/402.9
(100/x)*x=(79/402.9)*x       - we multiply both sides of the equation by x
100=0.19607843137255*x       - we divide both sides of the equation by (0.19607843137255) to get x
100/0.19607843137255=x
510=x
x=510

now we have:
402.9 is 510% of 79