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Finding the Fourth Proportional to 633,198.29, 873,815.03 and 342,812.90

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Solution

The fourth proportional to 633,198.29, 873,815.03 and 342,812.90 is: 473,082.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,198.29 : 873,815.03 = 342,812.90 : x
  2. Step 2: Convert to fraction form
    633,198.29/873,815.03 = 342,812.90/x
  3. Step 3: Cross multiply
    633,198.29x = 873,815.03 × 342,812.90
  4. Step 4: Simplify right side
    633,198.29x = 299,555,058,414.75
  5. Step 5: Solve for x
    x = 299,555,058,414.75/633,198.29
  6. Step 6: Final answer
    x = 473,082.55

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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.