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Finding the Fourth Proportional to 315,431.18, 470,732.86 and 281,773.24

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Solution

The fourth proportional to 315,431.18, 470,732.86 and 281,773.24 is: 420,503.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,431.18 : 470,732.86 = 281,773.24 : x
  2. Step 2: Convert to fraction form
    315,431.18/470,732.86 = 281,773.24/x
  3. Step 3: Cross multiply
    315,431.18x = 470,732.86 × 281,773.24
  4. Step 4: Simplify right side
    315,431.18x = 132,639,923,136.67
  5. Step 5: Solve for x
    x = 132,639,923,136.67/315,431.18
  6. Step 6: Final answer
    x = 420,503.53

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