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Finding the Fourth Proportional to 392,611.36, 588,493.68 and 192,699.04

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Solution

The fourth proportional to 392,611.36, 588,493.68 and 192,699.04 is: 288,840.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,611.36 : 588,493.68 = 192,699.04 : x
  2. Step 2: Convert to fraction form
    392,611.36/588,493.68 = 192,699.04/x
  3. Step 3: Cross multiply
    392,611.36x = 588,493.68 × 192,699.04
  4. Step 4: Simplify right side
    392,611.36x = 113,402,167,182.07
  5. Step 5: Solve for x
    x = 113,402,167,182.07/392,611.36
  6. Step 6: Final answer
    x = 288,840.77

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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.