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Finding the Fourth Proportional to 518,203.28, 777,304.91 and 181,131.90

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Solution

The fourth proportional to 518,203.28, 777,304.91 and 181,131.90 is: 271,697.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,203.28 : 777,304.91 = 181,131.90 : x
  2. Step 2: Convert to fraction form
    518,203.28/777,304.91 = 181,131.90/x
  3. Step 3: Cross multiply
    518,203.28x = 777,304.91 × 181,131.90
  4. Step 4: Simplify right side
    518,203.28x = 140,794,715,680.46
  5. Step 5: Solve for x
    x = 140,794,715,680.46/518,203.28
  6. Step 6: Final answer
    x = 271,697.85

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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.