The answer to this problem is 349.92. assuming that 648 is 100 we can rewrite the problem like so: 648=100. now we have 2 equations 648=100% x=54% since the left and right sides have the same unit we can do something like so: 648/x=100%/54% now solve 648/x=100/54
(648/x)*x=(100/54)*x - we multiply both sides of the equation by x
648=1.8518518518519*x - we divide both sides of the equation by (1.8518518518519) to get x
648/1.8518518518519=x
349.92=x
x=349.92
