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Finding the Fourth Proportional to 1,974.22, 2,961.33 and 804.03

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Solution

The fourth proportional to 1,974.22, 2,961.33 and 804.03 is: 1,206.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974.22 : 2,961.33 = 804.03 : x
  2. Step 2: Convert to fraction form
    1,974.22/2,961.33 = 804.03/x
  3. Step 3: Cross multiply
    1,974.22x = 2,961.33 × 804.03
  4. Step 4: Simplify right side
    1,974.22x = 2,380,990.82
  5. Step 5: Solve for x
    x = 2,380,990.82/1,974.22
  6. Step 6: Final answer
    x = 1,206.04

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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.