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Finding the Fourth Proportional to 488, 732 and 179.84

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Solution

The fourth proportional to 488, 732 and 179.84 is: 269.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    488 : 732 = 179.84 : x
  2. Step 2: Convert to fraction form
    488/732 = 179.84/x
  3. Step 3: Cross multiply
    488x = 732 × 179.84
  4. Step 4: Simplify right side
    488x = 131,642.88
  5. Step 5: Solve for x
    x = 131,642.88/488
  6. Step 6: Final answer
    x = 269.76

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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.