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Finding the Fourth Proportional to 3,694.90, 5,541.80 and 1,229.66

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Solution

The fourth proportional to 3,694.90, 5,541.80 and 1,229.66 is: 1,844.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,694.90 : 5,541.80 = 1,229.66 : x
  2. Step 2: Convert to fraction form
    3,694.90/5,541.80 = 1,229.66/x
  3. Step 3: Cross multiply
    3,694.90x = 5,541.80 × 1,229.66
  4. Step 4: Simplify right side
    3,694.90x = 6,814,529.79
  5. Step 5: Solve for x
    x = 6,814,529.79/3,694.90
  6. Step 6: Final answer
    x = 1,844.31

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