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Finding the Fourth Proportional to 706.72, 1,060.16 and 295.96

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Solution

The fourth proportional to 706.72, 1,060.16 and 295.96 is: 443.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    706.72 : 1,060.16 = 295.96 : x
  2. Step 2: Convert to fraction form
    706.72/1,060.16 = 295.96/x
  3. Step 3: Cross multiply
    706.72x = 1,060.16 × 295.96
  4. Step 4: Simplify right side
    706.72x = 313,764.95
  5. Step 5: Solve for x
    x = 313,764.95/706.72
  6. Step 6: Final answer
    x = 443.97

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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.