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Finding the Fourth Proportional to 664,167.40, 996,251.10 and 165,531.40

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Solution

The fourth proportional to 664,167.40, 996,251.10 and 165,531.40 is: 248,297.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,167.40 : 996,251.10 = 165,531.40 : x
  2. Step 2: Convert to fraction form
    664,167.40/996,251.10 = 165,531.40/x
  3. Step 3: Cross multiply
    664,167.40x = 996,251.10 × 165,531.40
  4. Step 4: Simplify right side
    664,167.40x = 164,910,839,334.54
  5. Step 5: Solve for x
    x = 164,910,839,334.54/664,167.40
  6. Step 6: Final answer
    x = 248,297.10

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Half scale
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Double scale
Find fourth proportional to 664,168.40, 996,252.60 and 165,532.40
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.