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Finding the Fourth Proportional to 3,668,769.92, 5,063,369.64 and 2,218,475.66

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Solution

The fourth proportional to 3,668,769.92, 5,063,369.64 and 2,218,475.66 is: 3,061,778.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668,769.92 : 5,063,369.64 = 2,218,475.66 : x
  2. Step 2: Convert to fraction form
    3,668,769.92/5,063,369.64 = 2,218,475.66/x
  3. Step 3: Cross multiply
    3,668,769.92x = 5,063,369.64 × 2,218,475.66
  4. Step 4: Simplify right side
    3,668,769.92x = 11,232,962,270,286.83
  5. Step 5: Solve for x
    x = 11,232,962,270,286.83/3,668,769.92
  6. Step 6: Final answer
    x = 3,061,778.88

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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.