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Finding the Fourth Proportional to 2,073,541.78, 3,109,846.10 and 743,845.78

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Solution

The fourth proportional to 2,073,541.78, 3,109,846.10 and 743,845.78 is: 1,115,601.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,073,541.78 : 3,109,846.10 = 743,845.78 : x
  2. Step 2: Convert to fraction form
    2,073,541.78/3,109,846.10 = 743,845.78/x
  3. Step 3: Cross multiply
    2,073,541.78x = 3,109,846.10 × 743,845.78
  4. Step 4: Simplify right side
    2,073,541.78x = 2,313,245,897,934.46
  5. Step 5: Solve for x
    x = 2,313,245,897,934.46/2,073,541.78
  6. Step 6: Final answer
    x = 1,115,601.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.