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Finding the Fourth Proportional to 2,259.11, 3,388.97 and 798.28

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Solution

The fourth proportional to 2,259.11, 3,388.97 and 798.28 is: 1,197.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.11 : 3,388.97 = 798.28 : x
  2. Step 2: Convert to fraction form
    2,259.11/3,388.97 = 798.28/x
  3. Step 3: Cross multiply
    2,259.11x = 3,388.97 × 798.28
  4. Step 4: Simplify right side
    2,259.11x = 2,705,340.49
  5. Step 5: Solve for x
    x = 2,705,340.49/2,259.11
  6. Step 6: Final answer
    x = 1,197.52

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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.