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Finding the Fourth Proportional to 5,777,328.92, 7,972,616.02 and 3,198,954.20

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Solution

The fourth proportional to 5,777,328.92, 7,972,616.02 and 3,198,954.20 is: 4,414,502.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,777,328.92 : 7,972,616.02 = 3,198,954.20 : x
  2. Step 2: Convert to fraction form
    5,777,328.92/7,972,616.02 = 3,198,954.20/x
  3. Step 3: Cross multiply
    5,777,328.92x = 7,972,616.02 × 3,198,954.20
  4. Step 4: Simplify right side
    5,777,328.92x = 25,504,033,502,166.29
  5. Step 5: Solve for x
    x = 25,504,033,502,166.29/5,777,328.92
  6. Step 6: Final answer
    x = 4,414,502.59

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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.