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Finding the Fourth Proportional to 1,482.44, 2,220.78 and 797

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Solution

The fourth proportional to 1,482.44, 2,220.78 and 797 is: 1,193.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,482.44 : 2,220.78 = 797 : x
  2. Step 2: Convert to fraction form
    1,482.44/2,220.78 = 797/x
  3. Step 3: Cross multiply
    1,482.44x = 2,220.78 × 797
  4. Step 4: Simplify right side
    1,482.44x = 1,769,961.66
  5. Step 5: Solve for x
    x = 1,769,961.66/1,482.44
  6. Step 6: Final answer
    x = 1,193.95

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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.