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Finding the Fourth Proportional to 625,233.16, 862,820.58 and 338,761

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Solution

The fourth proportional to 625,233.16, 862,820.58 and 338,761 is: 467,489.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,233.16 : 862,820.58 = 338,761 : x
  2. Step 2: Convert to fraction form
    625,233.16/862,820.58 = 338,761/x
  3. Step 3: Cross multiply
    625,233.16x = 862,820.58 × 338,761
  4. Step 4: Simplify right side
    625,233.16x = 292,289,962,501.38
  5. Step 5: Solve for x
    x = 292,289,962,501.38/625,233.16
  6. Step 6: Final answer
    x = 467,489.54

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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.