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Finding the Fourth Proportional to 624,370.72, 861,634.31 and 337,890.83

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Solution

The fourth proportional to 624,370.72, 861,634.31 and 337,890.83 is: 466,290.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,370.72 : 861,634.31 = 337,890.83 : x
  2. Step 2: Convert to fraction form
    624,370.72/861,634.31 = 337,890.83/x
  3. Step 3: Cross multiply
    624,370.72x = 861,634.31 × 337,890.83
  4. Step 4: Simplify right side
    624,370.72x = 291,138,332,162.38
  5. Step 5: Solve for x
    x = 291,138,332,162.38/624,370.72
  6. Step 6: Final answer
    x = 466,290.82

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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.