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Finding the Third Proportional to 193,830 and 410,679

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Solution

The third proportional to 193,830 and 410,679 is: 870,129.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,830 : 410,679 = 410,679 : x
  2. Step 2: Convert to fraction form
    193,830/410,679 = 410,679/x
  3. Step 3: Cross multiply
    193,830x = 410,679 × 410,679
  4. Step 4: Simplify right side
    193,830x = 168,657,241,041
  5. Step 5: Solve for x
    x = 168,657,241,041/193,830
  6. Step 6: Final answer
    x = 870,129.71

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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.