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Finding the Fourth Proportional to 541,282.60, 811,923.90 and 167,420.20

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Solution

The fourth proportional to 541,282.60, 811,923.90 and 167,420.20 is: 251,130.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,282.60 : 811,923.90 = 167,420.20 : x
  2. Step 2: Convert to fraction form
    541,282.60/811,923.90 = 167,420.20/x
  3. Step 3: Cross multiply
    541,282.60x = 811,923.90 × 167,420.20
  4. Step 4: Simplify right side
    541,282.60x = 135,932,461,722.78
  5. Step 5: Solve for x
    x = 135,932,461,722.78/541,282.60
  6. Step 6: Final answer
    x = 251,130.30

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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.