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Finding the Fourth Proportional to 394,497.20, 592,134.60 and 195,042.80

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Solution

The fourth proportional to 394,497.20, 592,134.60 and 195,042.80 is: 292,756.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,497.20 : 592,134.60 = 195,042.80 : x
  2. Step 2: Convert to fraction form
    394,497.20/592,134.60 = 195,042.80/x
  3. Step 3: Cross multiply
    394,497.20x = 592,134.60 × 195,042.80
  4. Step 4: Simplify right side
    394,497.20x = 115,491,590,360.88
  5. Step 5: Solve for x
    x = 115,491,590,360.88/394,497.20
  6. Step 6: Final answer
    x = 292,756.43

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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.