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Finding the Fourth Proportional to 721,571.38, 994,953.60 and 539,700.46

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Solution

The fourth proportional to 721,571.38, 994,953.60 and 539,700.46 is: 744,177.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,571.38 : 994,953.60 = 539,700.46 : x
  2. Step 2: Convert to fraction form
    721,571.38/994,953.60 = 539,700.46/x
  3. Step 3: Cross multiply
    721,571.38x = 994,953.60 × 539,700.46
  4. Step 4: Simplify right side
    721,571.38x = 536,976,915,598.66
  5. Step 5: Solve for x
    x = 536,976,915,598.66/721,571.38
  6. Step 6: Final answer
    x = 744,177.13

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Double scale
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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.