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Finding the Fourth Proportional to 323,665.60, 446,849.86 and 287,756.22

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Solution

The fourth proportional to 323,665.60, 446,849.86 and 287,756.22 is: 397,273.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,665.60 : 446,849.86 = 287,756.22 : x
  2. Step 2: Convert to fraction form
    323,665.60/446,849.86 = 287,756.22/x
  3. Step 3: Cross multiply
    323,665.60x = 446,849.86 × 287,756.22
  4. Step 4: Simplify right side
    323,665.60x = 128,583,826,621.13
  5. Step 5: Solve for x
    x = 128,583,826,621.13/323,665.60
  6. Step 6: Final answer
    x = 397,273.69

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