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Finding the Fourth Proportional to 625,200.40, 862,775.40 and 338,727.76

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Solution

The fourth proportional to 625,200.40, 862,775.40 and 338,727.76 is: 467,443.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,200.40 : 862,775.40 = 338,727.76 : x
  2. Step 2: Convert to fraction form
    625,200.40/862,775.40 = 338,727.76/x
  3. Step 3: Cross multiply
    625,200.40x = 862,775.40 × 338,727.76
  4. Step 4: Simplify right side
    625,200.40x = 292,245,978,625.10
  5. Step 5: Solve for x
    x = 292,245,978,625.10/625,200.40
  6. Step 6: Final answer
    x = 467,443.68

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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.