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Finding the Third Proportional to 197,680 and 432,272

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Solution

The third proportional to 197,680 and 432,272 is: 945,260.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,680 : 432,272 = 432,272 : x
  2. Step 2: Convert to fraction form
    197,680/432,272 = 432,272/x
  3. Step 3: Cross multiply
    197,680x = 432,272 × 432,272
  4. Step 4: Simplify right side
    197,680x = 186,859,081,984
  5. Step 5: Solve for x
    x = 186,859,081,984/197,680
  6. Step 6: Final answer
    x = 945,260.43

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.