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Finding the Fourth Proportional to 1,446.11, 2,169.44 and 580.49

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Solution

The fourth proportional to 1,446.11, 2,169.44 and 580.49 is: 870.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,446.11 : 2,169.44 = 580.49 : x
  2. Step 2: Convert to fraction form
    1,446.11/2,169.44 = 580.49/x
  3. Step 3: Cross multiply
    1,446.11x = 2,169.44 × 580.49
  4. Step 4: Simplify right side
    1,446.11x = 1,259,338.23
  5. Step 5: Solve for x
    x = 1,259,338.23/1,446.11
  6. Step 6: Final answer
    x = 870.85

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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.