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Finding the Fourth Proportional to 482,221.65, 721,913.55 and 321,899.94

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Solution

The fourth proportional to 482,221.65, 721,913.55 and 321,899.94 is: 481,902.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,221.65 : 721,913.55 = 321,899.94 : x
  2. Step 2: Convert to fraction form
    482,221.65/721,913.55 = 321,899.94/x
  3. Step 3: Cross multiply
    482,221.65x = 721,913.55 × 321,899.94
  4. Step 4: Simplify right side
    482,221.65x = 232,383,931,137.36
  5. Step 5: Solve for x
    x = 232,383,931,137.36/482,221.65
  6. Step 6: Final answer
    x = 481,902.73

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