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Finding the Fourth Proportional to 477,710.97, 715,892.53 and 372,061.05

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Solution

The fourth proportional to 477,710.97, 715,892.53 and 372,061.05 is: 557,566.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,710.97 : 715,892.53 = 372,061.05 : x
  2. Step 2: Convert to fraction form
    477,710.97/715,892.53 = 372,061.05/x
  3. Step 3: Cross multiply
    477,710.97x = 715,892.53 × 372,061.05
  4. Step 4: Simplify right side
    477,710.97x = 266,355,726,398.96
  5. Step 5: Solve for x
    x = 266,355,726,398.96/477,710.97
  6. Step 6: Final answer
    x = 557,566.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.