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Finding the Fourth Proportional to 313.26, 468.96 and 197.32

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Solution

The fourth proportional to 313.26, 468.96 and 197.32 is: 295.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    313.26 : 468.96 = 197.32 : x
  2. Step 2: Convert to fraction form
    313.26/468.96 = 197.32/x
  3. Step 3: Cross multiply
    313.26x = 468.96 × 197.32
  4. Step 4: Simplify right side
    313.26x = 92,535.19
  5. Step 5: Solve for x
    x = 92,535.19/313.26
  6. Step 6: Final answer
    x = 295.39

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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.