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Finding the Fourth Proportional to 408,337.44, 612,506.04 and 127,876.56

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Solution

The fourth proportional to 408,337.44, 612,506.04 and 127,876.56 is: 191,814.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,337.44 : 612,506.04 = 127,876.56 : x
  2. Step 2: Convert to fraction form
    408,337.44/612,506.04 = 127,876.56/x
  3. Step 3: Cross multiply
    408,337.44x = 612,506.04 × 127,876.56
  4. Step 4: Simplify right side
    408,337.44x = 78,325,165,374.42
  5. Step 5: Solve for x
    x = 78,325,165,374.42/408,337.44
  6. Step 6: Final answer
    x = 191,814.80

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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.