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Finding the Fourth Proportional to 443,235.80, 664,489.20 and 190,710.20

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Solution

The fourth proportional to 443,235.80, 664,489.20 and 190,710.20 is: 285,908.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,235.80 : 664,489.20 = 190,710.20 : x
  2. Step 2: Convert to fraction form
    443,235.80/664,489.20 = 190,710.20/x
  3. Step 3: Cross multiply
    443,235.80x = 664,489.20 × 190,710.20
  4. Step 4: Simplify right side
    443,235.80x = 126,724,868,229.84
  5. Step 5: Solve for x
    x = 126,724,868,229.84/443,235.80
  6. Step 6: Final answer
    x = 285,908.47

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