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Finding the Fourth Proportional to 392,504.80, 588,152.40 and 292,194.40

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Solution

The fourth proportional to 392,504.80, 588,152.40 and 292,194.40 is: 437,841.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,504.80 : 588,152.40 = 292,194.40 : x
  2. Step 2: Convert to fraction form
    392,504.80/588,152.40 = 292,194.40/x
  3. Step 3: Cross multiply
    392,504.80x = 588,152.40 × 292,194.40
  4. Step 4: Simplify right side
    392,504.80x = 171,854,837,626.56
  5. Step 5: Solve for x
    x = 171,854,837,626.56/392,504.80
  6. Step 6: Final answer
    x = 437,841.37

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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.