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Finding the Fourth Proportional to 460,235.21, 690,322.43 and 220,520.57

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Solution

The fourth proportional to 460,235.21, 690,322.43 and 220,520.57 is: 330,766.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,235.21 : 690,322.43 = 220,520.57 : x
  2. Step 2: Convert to fraction form
    460,235.21/690,322.43 = 220,520.57/x
  3. Step 3: Cross multiply
    460,235.21x = 690,322.43 × 220,520.57
  4. Step 4: Simplify right side
    460,235.21x = 152,230,292,847.07
  5. Step 5: Solve for x
    x = 152,230,292,847.07/460,235.21
  6. Step 6: Final answer
    x = 330,766.29

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