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Finding the Fourth Proportional to 583,655.40, 876,139.20 and 451,123.20

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Solution

The fourth proportional to 583,655.40, 876,139.20 and 451,123.20 is: 677,191.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,655.40 : 876,139.20 = 451,123.20 : x
  2. Step 2: Convert to fraction form
    583,655.40/876,139.20 = 451,123.20/x
  3. Step 3: Cross multiply
    583,655.40x = 876,139.20 × 451,123.20
  4. Step 4: Simplify right side
    583,655.40x = 395,246,719,549.44
  5. Step 5: Solve for x
    x = 395,246,719,549.44/583,655.40
  6. Step 6: Final answer
    x = 677,191.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.