Home / 664,865.19-997,297.78-166,229.19

Finding the Fourth Proportional to 664,865.19, 997,297.78 and 166,229.19

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Solution

The fourth proportional to 664,865.19, 997,297.78 and 166,229.19 is: 249,343.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,865.19 : 997,297.78 = 166,229.19 : x
  2. Step 2: Convert to fraction form
    664,865.19/997,297.78 = 166,229.19/x
  3. Step 3: Cross multiply
    664,865.19x = 997,297.78 × 166,229.19
  4. Step 4: Simplify right side
    664,865.19x = 165,780,002,158.20
  5. Step 5: Solve for x
    x = 165,780,002,158.20/664,865.19
  6. Step 6: Final answer
    x = 249,343.78

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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.