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Finding the Fourth Proportional to 2,265.92, 3,398.88 and 1,169.69

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Solution

The fourth proportional to 2,265.92, 3,398.88 and 1,169.69 is: 1,754.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,265.92 : 3,398.88 = 1,169.69 : x
  2. Step 2: Convert to fraction form
    2,265.92/3,398.88 = 1,169.69/x
  3. Step 3: Cross multiply
    2,265.92x = 3,398.88 × 1,169.69
  4. Step 4: Simplify right side
    2,265.92x = 3,975,635.95
  5. Step 5: Solve for x
    x = 3,975,635.95/2,265.92
  6. Step 6: Final answer
    x = 1,754.54

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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.