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Finding the Fourth Proportional to 3,239.94, 4,855.44 and 1,480.66

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Solution

The fourth proportional to 3,239.94, 4,855.44 and 1,480.66 is: 2,218.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.94 : 4,855.44 = 1,480.66 : x
  2. Step 2: Convert to fraction form
    3,239.94/4,855.44 = 1,480.66/x
  3. Step 3: Cross multiply
    3,239.94x = 4,855.44 × 1,480.66
  4. Step 4: Simplify right side
    3,239.94x = 7,189,255.79
  5. Step 5: Solve for x
    x = 7,189,255.79/3,239.94
  6. Step 6: Final answer
    x = 2,218.95

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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.