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Finding the Third Proportional to 197,412 and 313,974

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Solution

The third proportional to 197,412 and 313,974 is: 499,360.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,412 : 313,974 = 313,974 : x
  2. Step 2: Convert to fraction form
    197,412/313,974 = 313,974/x
  3. Step 3: Cross multiply
    197,412x = 313,974 × 313,974
  4. Step 4: Simplify right side
    197,412x = 98,579,672,676
  5. Step 5: Solve for x
    x = 98,579,672,676/197,412
  6. Step 6: Final answer
    x = 499,360.08

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.