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Finding the Third Proportional to 197,286.75 and 434,790

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Solution

The third proportional to 197,286.75 and 434,790 is: 958,211.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,286.75 : 434,790 = 434,790 : x
  2. Step 2: Convert to fraction form
    197,286.75/434,790 = 434,790/x
  3. Step 3: Cross multiply
    197,286.75x = 434,790 × 434,790
  4. Step 4: Simplify right side
    197,286.75x = 189,042,344,100
  5. Step 5: Solve for x
    x = 189,042,344,100/197,286.75
  6. Step 6: Final answer
    x = 958,211.05

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.