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Finding the Third Proportional to 198,352 and 413,168

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Solution

The third proportional to 198,352 and 413,168 is: 860,630.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,352 : 413,168 = 413,168 : x
  2. Step 2: Convert to fraction form
    198,352/413,168 = 413,168/x
  3. Step 3: Cross multiply
    198,352x = 413,168 × 413,168
  4. Step 4: Simplify right side
    198,352x = 170,707,796,224
  5. Step 5: Solve for x
    x = 170,707,796,224/198,352
  6. Step 6: Final answer
    x = 860,630.58

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.