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Finding the Fourth Proportional to 625,084.38, 862,620.60 and 338,604.48

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Solution

The fourth proportional to 625,084.38, 862,620.60 and 338,604.48 is: 467,276.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,084.38 : 862,620.60 = 338,604.48 : x
  2. Step 2: Convert to fraction form
    625,084.38/862,620.60 = 338,604.48/x
  3. Step 3: Cross multiply
    625,084.38x = 862,620.60 × 338,604.48
  4. Step 4: Simplify right side
    625,084.38x = 292,087,199,700.29
  5. Step 5: Solve for x
    x = 292,087,199,700.29/625,084.38
  6. Step 6: Final answer
    x = 467,276.43

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1.5x scale

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.