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Finding the Third Proportional to 197,930 and 426,964

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Solution

The third proportional to 197,930 and 426,964 is: 921,023.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,930 : 426,964 = 426,964 : x
  2. Step 2: Convert to fraction form
    197,930/426,964 = 426,964/x
  3. Step 3: Cross multiply
    197,930x = 426,964 × 426,964
  4. Step 4: Simplify right side
    197,930x = 182,298,257,296
  5. Step 5: Solve for x
    x = 182,298,257,296/197,930
  6. Step 6: Final answer
    x = 921,023.88

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.