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Finding the Fourth Proportional to 2,728.80, 4,093.44 and 997.44

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Solution

The fourth proportional to 2,728.80, 4,093.44 and 997.44 is: 1,496.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.80 : 4,093.44 = 997.44 : x
  2. Step 2: Convert to fraction form
    2,728.80/4,093.44 = 997.44/x
  3. Step 3: Cross multiply
    2,728.80x = 4,093.44 × 997.44
  4. Step 4: Simplify right side
    2,728.80x = 4,082,960.79
  5. Step 5: Solve for x
    x = 4,082,960.79/2,728.80
  6. Step 6: Final answer
    x = 1,496.25

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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.