Finding the Fourth Proportional to 719,028.23, 992,279.57 and 396,759.09
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Solution
The fourth proportional to 719,028.23, 992,279.57 and 396,759.09 is: 547,538.92
Step by Step Solution
- Step 1: Write the proportion equation
719,028.23 : 992,279.57 = 396,759.09 : x - Step 2: Convert to fraction form
719,028.23/992,279.57 = 396,759.09/x - Step 3: Cross multiply
719,028.23x = 992,279.57 × 396,759.09 - Step 4: Simplify right side
719,028.23x = 393,695,939,218.79 - Step 5: Solve for x
x = 393,695,939,218.79/719,028.23 - Step 6: Final answer
x = 547,538.92
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.