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Finding the Fourth Proportional to 551,424.90, 827,277.67 and 323,912.91

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Solution

The fourth proportional to 551,424.90, 827,277.67 and 323,912.91 is: 485,951.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,424.90 : 827,277.67 = 323,912.91 : x
  2. Step 2: Convert to fraction form
    551,424.90/827,277.67 = 323,912.91/x
  3. Step 3: Cross multiply
    551,424.90x = 827,277.67 × 323,912.91
  4. Step 4: Simplify right side
    551,424.90x = 267,965,912,521.55
  5. Step 5: Solve for x
    x = 267,965,912,521.55/551,424.90
  6. Step 6: Final answer
    x = 485,951.79

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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.