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Finding the Fourth Proportional to 664,040.70, 996,061.05 and 165,404.70

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Solution

The fourth proportional to 664,040.70, 996,061.05 and 165,404.70 is: 248,107.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,040.70 : 996,061.05 = 165,404.70 : x
  2. Step 2: Convert to fraction form
    664,040.70/996,061.05 = 165,404.70/x
  3. Step 3: Cross multiply
    664,040.70x = 996,061.05 × 165,404.70
  4. Step 4: Simplify right side
    664,040.70x = 164,753,179,156.94
  5. Step 5: Solve for x
    x = 164,753,179,156.94/664,040.70
  6. Step 6: Final answer
    x = 248,107.05

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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.