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Finding the Fourth Proportional to 625,198.95, 862,775.40 and 338,719.04

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Solution

The fourth proportional to 625,198.95, 862,775.40 and 338,719.04 is: 467,432.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,198.95 : 862,775.40 = 338,719.04 : x
  2. Step 2: Convert to fraction form
    625,198.95/862,775.40 = 338,719.04/x
  3. Step 3: Cross multiply
    625,198.95x = 862,775.40 × 338,719.04
  4. Step 4: Simplify right side
    625,198.95x = 292,238,455,223.62
  5. Step 5: Solve for x
    x = 292,238,455,223.62/625,198.95
  6. Step 6: Final answer
    x = 467,432.74

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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.