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Finding the Fourth Proportional to 552,789.28, 825,146.60 and 474,407.20

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Solution

The fourth proportional to 552,789.28, 825,146.60 and 474,407.20 is: 708,145.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,789.28 : 825,146.60 = 474,407.20 : x
  2. Step 2: Convert to fraction form
    552,789.28/825,146.60 = 474,407.20/x
  3. Step 3: Cross multiply
    552,789.28x = 825,146.60 × 474,407.20
  4. Step 4: Simplify right side
    552,789.28x = 391,455,488,095.52
  5. Step 5: Solve for x
    x = 391,455,488,095.52/552,789.28
  6. Step 6: Final answer
    x = 708,145.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.