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Finding the Fourth Proportional to 2,934.11, 4,401.16 and 742.83

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Solution

The fourth proportional to 2,934.11, 4,401.16 and 742.83 is: 1,114.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,934.11 : 4,401.16 = 742.83 : x
  2. Step 2: Convert to fraction form
    2,934.11/4,401.16 = 742.83/x
  3. Step 3: Cross multiply
    2,934.11x = 4,401.16 × 742.83
  4. Step 4: Simplify right side
    2,934.11x = 3,269,311.83
  5. Step 5: Solve for x
    x = 3,269,311.83/2,934.11
  6. Step 6: Final answer
    x = 1,114.25

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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.