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Finding the Fourth Proportional to 1,441.60, 2,164 and 576.52

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Solution

The fourth proportional to 1,441.60, 2,164 and 576.52 is: 865.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441.60 : 2,164 = 576.52 : x
  2. Step 2: Convert to fraction form
    1,441.60/2,164 = 576.52/x
  3. Step 3: Cross multiply
    1,441.60x = 2,164 × 576.52
  4. Step 4: Simplify right side
    1,441.60x = 1,247,589.28
  5. Step 5: Solve for x
    x = 1,247,589.28/1,441.60
  6. Step 6: Final answer
    x = 865.42

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.