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Finding the Third Proportional to 193,515 and 410,520

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Solution

The third proportional to 193,515 and 410,520 is: 870,871.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,515 : 410,520 = 410,520 : x
  2. Step 2: Convert to fraction form
    193,515/410,520 = 410,520/x
  3. Step 3: Cross multiply
    193,515x = 410,520 × 410,520
  4. Step 4: Simplify right side
    193,515x = 168,526,670,400
  5. Step 5: Solve for x
    x = 168,526,670,400/193,515
  6. Step 6: Final answer
    x = 870,871.36

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.