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Finding the Fourth Proportional to 2,719.80, 4,078.67 and 1,158.82

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Solution

The fourth proportional to 2,719.80, 4,078.67 and 1,158.82 is: 1,737.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.80 : 4,078.67 = 1,158.82 : x
  2. Step 2: Convert to fraction form
    2,719.80/4,078.67 = 1,158.82/x
  3. Step 3: Cross multiply
    2,719.80x = 4,078.67 × 1,158.82
  4. Step 4: Simplify right side
    2,719.80x = 4,726,428.38
  5. Step 5: Solve for x
    x = 4,726,428.38/2,719.80
  6. Step 6: Final answer
    x = 1,737.79

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