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Finding the Fourth Proportional to 443,810.40, 664,403.40 and 396,571.20

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Solution

The fourth proportional to 443,810.40, 664,403.40 and 396,571.20 is: 593,684.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,810.40 : 664,403.40 = 396,571.20 : x
  2. Step 2: Convert to fraction form
    443,810.40/664,403.40 = 396,571.20/x
  3. Step 3: Cross multiply
    443,810.40x = 664,403.40 × 396,571.20
  4. Step 4: Simplify right side
    443,810.40x = 263,483,253,622.08
  5. Step 5: Solve for x
    x = 263,483,253,622.08/443,810.40
  6. Step 6: Final answer
    x = 593,684.27

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