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Finding the Fourth Proportional to 664,092.20, 996,138.30 and 165,456.20

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Solution

The fourth proportional to 664,092.20, 996,138.30 and 165,456.20 is: 248,184.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,092.20 : 996,138.30 = 165,456.20 : x
  2. Step 2: Convert to fraction form
    664,092.20/996,138.30 = 165,456.20/x
  3. Step 3: Cross multiply
    664,092.20x = 996,138.30 × 165,456.20
  4. Step 4: Simplify right side
    664,092.20x = 164,817,257,792.46
  5. Step 5: Solve for x
    x = 164,817,257,792.46/664,092.20
  6. Step 6: Final answer
    x = 248,184.30

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Double scale
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Similar ratio
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1.5x scale

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.