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Finding the Fourth Proportional to 455,847.30, 682,786.80 and 396,798.30

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Solution

The fourth proportional to 455,847.30, 682,786.80 and 396,798.30 is: 594,340.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,847.30 : 682,786.80 = 396,798.30 : x
  2. Step 2: Convert to fraction form
    455,847.30/682,786.80 = 396,798.30/x
  3. Step 3: Cross multiply
    455,847.30x = 682,786.80 × 396,798.30
  4. Step 4: Simplify right side
    455,847.30x = 270,928,641,502.44
  5. Step 5: Solve for x
    x = 270,928,641,502.44/455,847.30
  6. Step 6: Final answer
    x = 594,340.78

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