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Finding the Fourth Proportional to 392,607.36, 588,487.68 and 192,695.04

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Solution

The fourth proportional to 392,607.36, 588,487.68 and 192,695.04 is: 288,834.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,607.36 : 588,487.68 = 192,695.04 : x
  2. Step 2: Convert to fraction form
    392,607.36/588,487.68 = 192,695.04/x
  3. Step 3: Cross multiply
    392,607.36x = 588,487.68 × 192,695.04
  4. Step 4: Simplify right side
    392,607.36x = 113,398,657,037.11
  5. Step 5: Solve for x
    x = 113,398,657,037.11/392,607.36
  6. Step 6: Final answer
    x = 288,834.77

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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.