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Finding the Fourth Proportional to 625,087.38, 862,624.74 and 338,607.48

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Solution

The fourth proportional to 625,087.38, 862,624.74 and 338,607.48 is: 467,280.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,087.38 : 862,624.74 = 338,607.48 : x
  2. Step 2: Convert to fraction form
    625,087.38/862,624.74 = 338,607.48/x
  3. Step 3: Cross multiply
    625,087.38x = 862,624.74 × 338,607.48
  4. Step 4: Simplify right side
    625,087.38x = 292,091,189,397.06
  5. Step 5: Solve for x
    x = 292,091,189,397.06/625,087.38
  6. Step 6: Final answer
    x = 467,280.57

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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.