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Finding the Fourth Proportional to 419,676.14, 629,700.09 and 219,948.76

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Solution

The fourth proportional to 419,676.14, 629,700.09 and 219,948.76 is: 330,020.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,676.14 : 629,700.09 = 219,948.76 : x
  2. Step 2: Convert to fraction form
    419,676.14/629,700.09 = 219,948.76/x
  3. Step 3: Cross multiply
    419,676.14x = 629,700.09 × 219,948.76
  4. Step 4: Simplify right side
    419,676.14x = 138,501,753,967.39
  5. Step 5: Solve for x
    x = 138,501,753,967.39/419,676.14
  6. Step 6: Final answer
    x = 330,020.56

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