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Finding the Fourth Proportional to 2,480.52, 3,423.11 and 1,432.58

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Solution

The fourth proportional to 2,480.52, 3,423.11 and 1,432.58 is: 1,976.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.52 : 3,423.11 = 1,432.58 : x
  2. Step 2: Convert to fraction form
    2,480.52/3,423.11 = 1,432.58/x
  3. Step 3: Cross multiply
    2,480.52x = 3,423.11 × 1,432.58
  4. Step 4: Simplify right side
    2,480.52x = 4,903,878.92
  5. Step 5: Solve for x
    x = 4,903,878.92/2,480.52
  6. Step 6: Final answer
    x = 1,976.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.