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Finding the Fourth Proportional to 625,054.57, 862,574.49 and 338,575.79

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Solution

The fourth proportional to 625,054.57, 862,574.49 and 338,575.79 is: 467,234.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,054.57 : 862,574.49 = 338,575.79 : x
  2. Step 2: Convert to fraction form
    625,054.57/862,574.49 = 338,575.79/x
  3. Step 3: Cross multiply
    625,054.57x = 862,574.49 × 338,575.79
  4. Step 4: Simplify right side
    625,054.57x = 292,046,841,542.03
  5. Step 5: Solve for x
    x = 292,046,841,542.03/625,054.57
  6. Step 6: Final answer
    x = 467,234.15

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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.