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Finding the Fourth Proportional to 518,230.83, 777,760.97 and 268,984.11

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Solution

The fourth proportional to 518,230.83, 777,760.97 and 268,984.11 is: 403,691.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,230.83 : 777,760.97 = 268,984.11 : x
  2. Step 2: Convert to fraction form
    518,230.83/777,760.97 = 268,984.11/x
  3. Step 3: Cross multiply
    518,230.83x = 777,760.97 × 268,984.11
  4. Step 4: Simplify right side
    518,230.83x = 209,205,340,963.27
  5. Step 5: Solve for x
    x = 209,205,340,963.27/518,230.83
  6. Step 6: Final answer
    x = 403,691.42

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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.