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Finding the Fourth Proportional to 3,690.63, 5,534.05 and 1,224.57

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Solution

The fourth proportional to 3,690.63, 5,534.05 and 1,224.57 is: 1,836.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.63 : 5,534.05 = 1,224.57 : x
  2. Step 2: Convert to fraction form
    3,690.63/5,534.05 = 1,224.57/x
  3. Step 3: Cross multiply
    3,690.63x = 5,534.05 × 1,224.57
  4. Step 4: Simplify right side
    3,690.63x = 6,776,831.61
  5. Step 5: Solve for x
    x = 6,776,831.61/3,690.63
  6. Step 6: Final answer
    x = 1,836.23

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