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Finding the Fourth Proportional to 633,474.88, 874,147.92 and 361,535.20

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Solution

The fourth proportional to 633,474.88, 874,147.92 and 361,535.20 is: 498,891.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,474.88 : 874,147.92 = 361,535.20 : x
  2. Step 2: Convert to fraction form
    633,474.88/874,147.92 = 361,535.20/x
  3. Step 3: Cross multiply
    633,474.88x = 874,147.92 × 361,535.20
  4. Step 4: Simplify right side
    633,474.88x = 316,035,243,086.78
  5. Step 5: Solve for x
    x = 316,035,243,086.78/633,474.88
  6. Step 6: Final answer
    x = 498,891.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.