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Finding the Fourth Proportional to 541,305.20, 811,957.80 and 167,327.60

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Solution

The fourth proportional to 541,305.20, 811,957.80 and 167,327.60 is: 250,991.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,305.20 : 811,957.80 = 167,327.60 : x
  2. Step 2: Convert to fraction form
    541,305.20/811,957.80 = 167,327.60/x
  3. Step 3: Cross multiply
    541,305.20x = 811,957.80 × 167,327.60
  4. Step 4: Simplify right side
    541,305.20x = 135,862,949,975.28
  5. Step 5: Solve for x
    x = 135,862,949,975.28/541,305.20
  6. Step 6: Final answer
    x = 250,991.40

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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.