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Finding the Fourth Proportional to 618,441.66, 853,710.76 and 403,765.74

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Solution

The fourth proportional to 618,441.66, 853,710.76 and 403,765.74 is: 557,367.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,441.66 : 853,710.76 = 403,765.74 : x
  2. Step 2: Convert to fraction form
    618,441.66/853,710.76 = 403,765.74/x
  3. Step 3: Cross multiply
    618,441.66x = 853,710.76 × 403,765.74
  4. Step 4: Simplify right side
    618,441.66x = 344,699,156,757.36
  5. Step 5: Solve for x
    x = 344,699,156,757.36/618,441.66
  6. Step 6: Final answer
    x = 557,367.30

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