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Finding the Fourth Proportional to 664,872.59, 997,308.89 and 166,236.59

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Solution

The fourth proportional to 664,872.59, 997,308.89 and 166,236.59 is: 249,354.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,872.59 : 997,308.89 = 166,236.59 : x
  2. Step 2: Convert to fraction form
    664,872.59/997,308.89 = 166,236.59/x
  3. Step 3: Cross multiply
    664,872.59x = 997,308.89 × 166,236.59
  4. Step 4: Simplify right side
    664,872.59x = 165,789,223,232.56
  5. Step 5: Solve for x
    x = 165,789,223,232.56/664,872.59
  6. Step 6: Final answer
    x = 249,354.88

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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.