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Finding the Fourth Proportional to 592,635.40, 887,640.90 and 487,659.40

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Solution

The fourth proportional to 592,635.40, 887,640.90 and 487,659.40 is: 730,409.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,635.40 : 887,640.90 = 487,659.40 : x
  2. Step 2: Convert to fraction form
    592,635.40/887,640.90 = 487,659.40/x
  3. Step 3: Cross multiply
    592,635.40x = 887,640.90 × 487,659.40
  4. Step 4: Simplify right side
    592,635.40x = 432,866,428,709.46
  5. Step 5: Solve for x
    x = 432,866,428,709.46/592,635.40
  6. Step 6: Final answer
    x = 730,409.34

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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.