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Finding the Fourth Proportional to 3,906,569.76, 5,389,754.88 and 2,274,627.62

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Solution

The fourth proportional to 3,906,569.76, 5,389,754.88 and 2,274,627.62 is: 3,138,222.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906,569.76 : 5,389,754.88 = 2,274,627.62 : x
  2. Step 2: Convert to fraction form
    3,906,569.76/5,389,754.88 = 2,274,627.62/x
  3. Step 3: Cross multiply
    3,906,569.76x = 5,389,754.88 × 2,274,627.62
  4. Step 4: Simplify right side
    3,906,569.76x = 12,259,685,337,082.03
  5. Step 5: Solve for x
    x = 12,259,685,337,082.03/3,906,569.76
  6. Step 6: Final answer
    x = 3,138,222.56

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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.