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Finding the Fourth Proportional to 624,359.21, 861,618.33 and 337,879.31

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Solution

The fourth proportional to 624,359.21, 861,618.33 and 337,879.31 is: 466,274.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,359.21 : 861,618.33 = 337,879.31 : x
  2. Step 2: Convert to fraction form
    624,359.21/861,618.33 = 337,879.31/x
  3. Step 3: Cross multiply
    624,359.21x = 861,618.33 × 337,879.31
  4. Step 4: Simplify right side
    624,359.21x = 291,123,002,515.66
  5. Step 5: Solve for x
    x = 291,123,002,515.66/624,359.21
  6. Step 6: Final answer
    x = 466,274.86

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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.