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Finding the Fourth Proportional to 553,791.60, 830,644.20 and 216,766.80

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Solution

The fourth proportional to 553,791.60, 830,644.20 and 216,766.80 is: 325,133.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,791.60 : 830,644.20 = 216,766.80 : x
  2. Step 2: Convert to fraction form
    553,791.60/830,644.20 = 216,766.80/x
  3. Step 3: Cross multiply
    553,791.60x = 830,644.20 × 216,766.80
  4. Step 4: Simplify right side
    553,791.60x = 180,056,085,172.56
  5. Step 5: Solve for x
    x = 180,056,085,172.56/553,791.60
  6. Step 6: Final answer
    x = 325,133.29

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