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Finding the Fourth Proportional to 398,872.32, 550,444.56 and 217,584.48

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Solution

The fourth proportional to 398,872.32, 550,444.56 and 217,584.48 is: 300,267.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,872.32 : 550,444.56 = 217,584.48 : x
  2. Step 2: Convert to fraction form
    398,872.32/550,444.56 = 217,584.48/x
  3. Step 3: Cross multiply
    398,872.32x = 550,444.56 × 217,584.48
  4. Step 4: Simplify right side
    398,872.32x = 119,768,193,356.43
  5. Step 5: Solve for x
    x = 119,768,193,356.43/398,872.32
  6. Step 6: Final answer
    x = 300,267.00

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