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Finding the Fourth Proportional to 3,288.86, 4,933.39 and 1,439.02

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Solution

The fourth proportional to 3,288.86, 4,933.39 and 1,439.02 is: 2,158.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,288.86 : 4,933.39 = 1,439.02 : x
  2. Step 2: Convert to fraction form
    3,288.86/4,933.39 = 1,439.02/x
  3. Step 3: Cross multiply
    3,288.86x = 4,933.39 × 1,439.02
  4. Step 4: Simplify right side
    3,288.86x = 7,099,252.15
  5. Step 5: Solve for x
    x = 7,099,252.15/3,288.86
  6. Step 6: Final answer
    x = 2,158.58

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Why These Related Problems?

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