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Finding the Fourth Proportional to 2,965.43, 4,448.23 and 774.11

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Solution

The fourth proportional to 2,965.43, 4,448.23 and 774.11 is: 1,161.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,965.43 : 4,448.23 = 774.11 : x
  2. Step 2: Convert to fraction form
    2,965.43/4,448.23 = 774.11/x
  3. Step 3: Cross multiply
    2,965.43x = 4,448.23 × 774.11
  4. Step 4: Simplify right side
    2,965.43x = 3,443,419.33
  5. Step 5: Solve for x
    x = 3,443,419.33/2,965.43
  6. Step 6: Final answer
    x = 1,161.19

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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.