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Finding the Fourth Proportional to 541,287.70, 811,931.55 and 167,310.10

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Solution

The fourth proportional to 541,287.70, 811,931.55 and 167,310.10 is: 250,965.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,287.70 : 811,931.55 = 167,310.10 : x
  2. Step 2: Convert to fraction form
    541,287.70/811,931.55 = 167,310.10/x
  3. Step 3: Cross multiply
    541,287.70x = 811,931.55 × 167,310.10
  4. Step 4: Simplify right side
    541,287.70x = 135,844,348,823.66
  5. Step 5: Solve for x
    x = 135,844,348,823.66/541,287.70
  6. Step 6: Final answer
    x = 250,965.15

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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.