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Finding the Third Proportional to 197,243 and 431,314

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Solution

The third proportional to 197,243 and 431,314 is: 943,160.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,243 : 431,314 = 431,314 : x
  2. Step 2: Convert to fraction form
    197,243/431,314 = 431,314/x
  3. Step 3: Cross multiply
    197,243x = 431,314 × 431,314
  4. Step 4: Simplify right side
    197,243x = 186,031,766,596
  5. Step 5: Solve for x
    x = 186,031,766,596/197,243
  6. Step 6: Final answer
    x = 943,160.30

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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.