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Finding the Third Proportional to 393,204 and 842,433

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Solution

The third proportional to 393,204 and 842,433 is: 1,804,898.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,204 : 842,433 = 842,433 : x
  2. Step 2: Convert to fraction form
    393,204/842,433 = 842,433/x
  3. Step 3: Cross multiply
    393,204x = 842,433 × 842,433
  4. Step 4: Simplify right side
    393,204x = 709,693,359,489
  5. Step 5: Solve for x
    x = 709,693,359,489/393,204
  6. Step 6: Final answer
    x = 1,804,898.63

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.