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Finding the Fourth Proportional to 625,410.46, 863,067.17 and 338,930.54

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Solution

The fourth proportional to 625,410.46, 863,067.17 and 338,930.54 is: 467,724.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,410.46 : 863,067.17 = 338,930.54 : x
  2. Step 2: Convert to fraction form
    625,410.46/863,067.17 = 338,930.54/x
  3. Step 3: Cross multiply
    625,410.46x = 863,067.17 × 338,930.54
  4. Step 4: Simplify right side
    625,410.46x = 292,519,821,752.86
  5. Step 5: Solve for x
    x = 292,519,821,752.86/625,410.46
  6. Step 6: Final answer
    x = 467,724.54

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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.