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Finding the Fourth Proportional to 457,691.00, 631,650.87 and 253,805.85

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Solution

The fourth proportional to 457,691.00, 631,650.87 and 253,805.85 is: 350,272.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,691.00 : 631,650.87 = 253,805.85 : x
  2. Step 2: Convert to fraction form
    457,691.00/631,650.87 = 253,805.85/x
  3. Step 3: Cross multiply
    457,691.00x = 631,650.87 × 253,805.85
  4. Step 4: Simplify right side
    457,691.00x = 160,316,685,963.59
  5. Step 5: Solve for x
    x = 160,316,685,963.59/457,691.00
  6. Step 6: Final answer
    x = 350,272.76

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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.