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Finding the Fourth Proportional to 488.35, 732.46 and 196

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Solution

The fourth proportional to 488.35, 732.46 and 196 is: 293.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.35 : 732.46 = 196 : x
  2. Step 2: Convert to fraction form
    488.35/732.46 = 196/x
  3. Step 3: Cross multiply
    488.35x = 732.46 × 196
  4. Step 4: Simplify right side
    488.35x = 143,562.16
  5. Step 5: Solve for x
    x = 143,562.16/488.35
  6. Step 6: Final answer
    x = 293.97

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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.