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Finding the Fourth Proportional to 2,240.76, 3,092.99 and 1,296.78

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Solution

The fourth proportional to 2,240.76, 3,092.99 and 1,296.78 is: 1,789.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.76 : 3,092.99 = 1,296.78 : x
  2. Step 2: Convert to fraction form
    2,240.76/3,092.99 = 1,296.78/x
  3. Step 3: Cross multiply
    2,240.76x = 3,092.99 × 1,296.78
  4. Step 4: Simplify right side
    2,240.76x = 4,010,935.59
  5. Step 5: Solve for x
    x = 4,010,935.59/2,240.76
  6. Step 6: Final answer
    x = 1,789.99

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.