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Finding the Fourth Proportional to 3,230.89, 4,845.25 and 1,039.09

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Solution

The fourth proportional to 3,230.89, 4,845.25 and 1,039.09 is: 1,558.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,230.89 : 4,845.25 = 1,039.09 : x
  2. Step 2: Convert to fraction form
    3,230.89/4,845.25 = 1,039.09/x
  3. Step 3: Cross multiply
    3,230.89x = 4,845.25 × 1,039.09
  4. Step 4: Simplify right side
    3,230.89x = 5,034,650.82
  5. Step 5: Solve for x
    x = 5,034,650.82/3,230.89
  6. Step 6: Final answer
    x = 1,558.29

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.