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Finding the Fourth Proportional to 664,591.13, 996,886.71 and 165,955.13

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Solution

The fourth proportional to 664,591.13, 996,886.71 and 165,955.13 is: 248,932.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,591.13 : 996,886.71 = 165,955.13 : x
  2. Step 2: Convert to fraction form
    664,591.13/996,886.71 = 165,955.13/x
  3. Step 3: Cross multiply
    664,591.13x = 996,886.71 × 165,955.13
  4. Step 4: Simplify right side
    664,591.13x = 165,438,463,553.32
  5. Step 5: Solve for x
    x = 165,438,463,553.32/664,591.13
  6. Step 6: Final answer
    x = 248,932.70

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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.