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Finding the Fourth Proportional to 625,103.13, 862,641.48 and 338,624.37

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Solution

The fourth proportional to 625,103.13, 862,641.48 and 338,624.37 is: 467,301.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,103.13 : 862,641.48 = 338,624.37 : x
  2. Step 2: Convert to fraction form
    625,103.13/862,641.48 = 338,624.37/x
  3. Step 3: Cross multiply
    625,103.13x = 862,641.48 × 338,624.37
  4. Step 4: Simplify right side
    625,103.13x = 292,111,427,700.87
  5. Step 5: Solve for x
    x = 292,111,427,700.87/625,103.13
  6. Step 6: Final answer
    x = 467,301.18

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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.