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Finding the Fourth Proportional to 592,414.40, 887,309.40 and 487,438.40

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Solution

The fourth proportional to 592,414.40, 887,309.40 and 487,438.40 is: 730,077.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,414.40 : 887,309.40 = 487,438.40 : x
  2. Step 2: Convert to fraction form
    592,414.40/887,309.40 = 487,438.40/x
  3. Step 3: Cross multiply
    592,414.40x = 887,309.40 × 487,438.40
  4. Step 4: Simplify right side
    592,414.40x = 432,508,674,240.96
  5. Step 5: Solve for x
    x = 432,508,674,240.96/592,414.40
  6. Step 6: Final answer
    x = 730,077.92

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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.