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Finding the Fourth Proportional to 625,193.82, 862,768.32 and 338,713.91

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Solution

The fourth proportional to 625,193.82, 862,768.32 and 338,713.91 is: 467,425.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,193.82 : 862,768.32 = 338,713.91 : x
  2. Step 2: Convert to fraction form
    625,193.82/862,768.32 = 338,713.91/x
  3. Step 3: Cross multiply
    625,193.82x = 862,768.32 × 338,713.91
  4. Step 4: Simplify right side
    625,193.82x = 292,231,629,911.01
  5. Step 5: Solve for x
    x = 292,231,629,911.01/625,193.82
  6. Step 6: Final answer
    x = 467,425.65

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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.