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Finding the Fourth Proportional to 625,093.60, 862,629.11 and 338,613.62

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Solution

The fourth proportional to 625,093.60, 862,629.11 and 338,613.62 is: 467,286.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,093.60 : 862,629.11 = 338,613.62 : x
  2. Step 2: Convert to fraction form
    625,093.60/862,629.11 = 338,613.62/x
  3. Step 3: Cross multiply
    625,093.60x = 862,629.11 × 338,613.62
  4. Step 4: Simplify right side
    625,093.60x = 292,097,965,654.48
  5. Step 5: Solve for x
    x = 292,097,965,654.48/625,093.60
  6. Step 6: Final answer
    x = 467,286.76

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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.