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Finding the Third Proportional to 405,306.75 and 881,963.25

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Solution

The third proportional to 405,306.75 and 881,963.25 is: 1,919,186.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,306.75 : 881,963.25 = 881,963.25 : x
  2. Step 2: Convert to fraction form
    405,306.75/881,963.25 = 881,963.25/x
  3. Step 3: Cross multiply
    405,306.75x = 881,963.25 × 881,963.25
  4. Step 4: Simplify right side
    405,306.75x = 777,859,174,350.56
  5. Step 5: Solve for x
    x = 777,859,174,350.56/405,306.75
  6. Step 6: Final answer
    x = 1,919,186.33

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.