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Finding the Fourth Proportional to 541,327.40, 811,991.10 and 167,388.20

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Solution

The fourth proportional to 541,327.40, 811,991.10 and 167,388.20 is: 251,082.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,327.40 : 811,991.10 = 167,388.20 : x
  2. Step 2: Convert to fraction form
    541,327.40/811,991.10 = 167,388.20/x
  3. Step 3: Cross multiply
    541,327.40x = 811,991.10 × 167,388.20
  4. Step 4: Simplify right side
    541,327.40x = 135,917,728,645.02
  5. Step 5: Solve for x
    x = 135,917,728,645.02/541,327.40
  6. Step 6: Final answer
    x = 251,082.30

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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.