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Finding the Fourth Proportional to 541,309.20, 811,963.80 and 167,331.60

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Solution

The fourth proportional to 541,309.20, 811,963.80 and 167,331.60 is: 250,997.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,309.20 : 811,963.80 = 167,331.60 : x
  2. Step 2: Convert to fraction form
    541,309.20/811,963.80 = 167,331.60/x
  3. Step 3: Cross multiply
    541,309.20x = 811,963.80 × 167,331.60
  4. Step 4: Simplify right side
    541,309.20x = 135,867,201,796.08
  5. Step 5: Solve for x
    x = 135,867,201,796.08/541,309.20
  6. Step 6: Final answer
    x = 250,997.40

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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.