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Finding the Fourth Proportional to 2,432.52, 3,648.42 and 788.88

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Solution

The fourth proportional to 2,432.52, 3,648.42 and 788.88 is: 1,183.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,432.52 : 3,648.42 = 788.88 : x
  2. Step 2: Convert to fraction form
    2,432.52/3,648.42 = 788.88/x
  3. Step 3: Cross multiply
    2,432.52x = 3,648.42 × 788.88
  4. Step 4: Simplify right side
    2,432.52x = 2,878,165.57
  5. Step 5: Solve for x
    x = 2,878,165.57/2,432.52
  6. Step 6: Final answer
    x = 1,183.20

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1.5x scale

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.