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Finding the Fourth Proportional to 1,947,605.31, 2,687,608.96 and 1,088,147.12

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Solution

The fourth proportional to 1,947,605.31, 2,687,608.96 and 1,088,147.12 is: 1,501,594.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947,605.31 : 2,687,608.96 = 1,088,147.12 : x
  2. Step 2: Convert to fraction form
    1,947,605.31/2,687,608.96 = 1,088,147.12/x
  3. Step 3: Cross multiply
    1,947,605.31x = 2,687,608.96 × 1,088,147.12
  4. Step 4: Simplify right side
    1,947,605.31x = 2,924,513,933,351.78
  5. Step 5: Solve for x
    x = 2,924,513,933,351.78/1,947,605.31
  6. Step 6: Final answer
    x = 1,501,594.76

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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.