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Finding the Fourth Proportional to 2,663.54, 3,994.08 and 996.44

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Solution

The fourth proportional to 2,663.54, 3,994.08 and 996.44 is: 1,494.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,663.54 : 3,994.08 = 996.44 : x
  2. Step 2: Convert to fraction form
    2,663.54/3,994.08 = 996.44/x
  3. Step 3: Cross multiply
    2,663.54x = 3,994.08 × 996.44
  4. Step 4: Simplify right side
    2,663.54x = 3,979,841.10
  5. Step 5: Solve for x
    x = 3,979,841.10/2,663.54
  6. Step 6: Final answer
    x = 1,494.20

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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.