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Finding the Fourth Proportional to 477,711.47, 715,893.27 and 372,061.55

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Solution

The fourth proportional to 477,711.47, 715,893.27 and 372,061.55 is: 557,567.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,711.47 : 715,893.27 = 372,061.55 : x
  2. Step 2: Convert to fraction form
    477,711.47/715,893.27 = 372,061.55/x
  3. Step 3: Cross multiply
    477,711.47x = 715,893.27 × 372,061.55
  4. Step 4: Simplify right side
    477,711.47x = 266,356,356,091.30
  5. Step 5: Solve for x
    x = 266,356,356,091.30/477,711.47
  6. Step 6: Final answer
    x = 557,567.43

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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.