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Finding the Fourth Proportional to 463,508.52, 639,641.72 and 251,540.52

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Solution

The fourth proportional to 463,508.52, 639,641.72 and 251,540.52 is: 347,125.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,508.52 : 639,641.72 = 251,540.52 : x
  2. Step 2: Convert to fraction form
    463,508.52/639,641.72 = 251,540.52/x
  3. Step 3: Cross multiply
    463,508.52x = 639,641.72 × 251,540.52
  4. Step 4: Simplify right side
    463,508.52x = 160,895,810,862.49
  5. Step 5: Solve for x
    x = 160,895,810,862.49/463,508.52
  6. Step 6: Final answer
    x = 347,125.90

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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.