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Finding the Fourth Proportional to 2,432.43, 3,648.85 and 788.33

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Solution

The fourth proportional to 2,432.43, 3,648.85 and 788.33 is: 1,182.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,432.43 : 3,648.85 = 788.33 : x
  2. Step 2: Convert to fraction form
    2,432.43/3,648.85 = 788.33/x
  3. Step 3: Cross multiply
    2,432.43x = 3,648.85 × 788.33
  4. Step 4: Simplify right side
    2,432.43x = 2,876,505.07
  5. Step 5: Solve for x
    x = 2,876,505.07/2,432.43
  6. Step 6: Final answer
    x = 1,182.56

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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.