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Finding the Fourth Proportional to 392,616.60, 588,924.90 and 268,200.60

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Solution

The fourth proportional to 392,616.60, 588,924.90 and 268,200.60 is: 402,300.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,616.60 : 588,924.90 = 268,200.60 : x
  2. Step 2: Convert to fraction form
    392,616.60/588,924.90 = 268,200.60/x
  3. Step 3: Cross multiply
    392,616.60x = 588,924.90 × 268,200.60
  4. Step 4: Simplify right side
    392,616.60x = 157,950,011,534.94
  5. Step 5: Solve for x
    x = 157,950,011,534.94/392,616.60
  6. Step 6: Final answer
    x = 402,300.90

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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.