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Finding the Fourth Proportional to 609,876.20, 914,727.90 and 189,194.60

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Solution

The fourth proportional to 609,876.20, 914,727.90 and 189,194.60 is: 283,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,876.20 : 914,727.90 = 189,194.60 : x
  2. Step 2: Convert to fraction form
    609,876.20/914,727.90 = 189,194.60/x
  3. Step 3: Cross multiply
    609,876.20x = 914,727.90 × 189,194.60
  4. Step 4: Simplify right side
    609,876.20x = 173,061,579,149.34
  5. Step 5: Solve for x
    x = 173,061,579,149.34/609,876.20
  6. Step 6: Final answer
    x = 283,765.10

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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.