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Finding the Fourth Proportional to 3,249.28, 4,873.60 and 940.96

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Solution

The fourth proportional to 3,249.28, 4,873.60 and 940.96 is: 1,411.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,249.28 : 4,873.60 = 940.96 : x
  2. Step 2: Convert to fraction form
    3,249.28/4,873.60 = 940.96/x
  3. Step 3: Cross multiply
    3,249.28x = 4,873.60 × 940.96
  4. Step 4: Simplify right side
    3,249.28x = 4,585,862.66
  5. Step 5: Solve for x
    x = 4,585,862.66/3,249.28
  6. Step 6: Final answer
    x = 1,411.35

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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.