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Finding the Fourth Proportional to 1,269.54, 1,747.37 and 1,108.89

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Solution

The fourth proportional to 1,269.54, 1,747.37 and 1,108.89 is: 1,526.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269.54 : 1,747.37 = 1,108.89 : x
  2. Step 2: Convert to fraction form
    1,269.54/1,747.37 = 1,108.89/x
  3. Step 3: Cross multiply
    1,269.54x = 1,747.37 × 1,108.89
  4. Step 4: Simplify right side
    1,269.54x = 1,937,643.89
  5. Step 5: Solve for x
    x = 1,937,643.89/1,269.54
  6. Step 6: Final answer
    x = 1,526.26

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