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Finding the Fourth Proportional to 625,098.64, 862,593.52 and 353,177.96

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Solution

The fourth proportional to 625,098.64, 862,593.52 and 353,177.96 is: 487,361.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,098.64 : 862,593.52 = 353,177.96 : x
  2. Step 2: Convert to fraction form
    625,098.64/862,593.52 = 353,177.96/x
  3. Step 3: Cross multiply
    625,098.64x = 862,593.52 × 353,177.96
  4. Step 4: Simplify right side
    625,098.64x = 304,649,019,702.82
  5. Step 5: Solve for x
    x = 304,649,019,702.82/625,098.64
  6. Step 6: Final answer
    x = 487,361.51

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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.