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Finding the Fourth Proportional to 366,921.40, 550,382.10 and 260,633.20

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Solution

The fourth proportional to 366,921.40, 550,382.10 and 260,633.20 is: 390,949.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,921.40 : 550,382.10 = 260,633.20 : x
  2. Step 2: Convert to fraction form
    366,921.40/550,382.10 = 260,633.20/x
  3. Step 3: Cross multiply
    366,921.40x = 550,382.10 × 260,633.20
  4. Step 4: Simplify right side
    366,921.40x = 143,447,847,945.72
  5. Step 5: Solve for x
    x = 143,447,847,945.72/366,921.40
  6. Step 6: Final answer
    x = 390,949.80

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