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Finding the Fourth Proportional to 400,645.47, 552,917.43 and 230,890.53

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Solution

The fourth proportional to 400,645.47, 552,917.43 and 230,890.53 is: 318,644.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,645.47 : 552,917.43 = 230,890.53 : x
  2. Step 2: Convert to fraction form
    400,645.47/552,917.43 = 230,890.53/x
  3. Step 3: Cross multiply
    400,645.47x = 552,917.43 × 230,890.53
  4. Step 4: Simplify right side
    400,645.47x = 127,663,398,458.94
  5. Step 5: Solve for x
    x = 127,663,398,458.94/400,645.47
  6. Step 6: Final answer
    x = 318,644.31

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