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Finding the Fourth Proportional to 944.85, 1,414.68 and 713.05

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Solution

The fourth proportional to 944.85, 1,414.68 and 713.05 is: 1,067.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.85 : 1,414.68 = 713.05 : x
  2. Step 2: Convert to fraction form
    944.85/1,414.68 = 713.05/x
  3. Step 3: Cross multiply
    944.85x = 1,414.68 × 713.05
  4. Step 4: Simplify right side
    944.85x = 1,008,740.32
  5. Step 5: Solve for x
    x = 1,008,740.32/944.85
  6. Step 6: Final answer
    x = 1,067.62

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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.