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Finding the Third Proportional to 405,103.13 and 873,010.31

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Solution

The third proportional to 405,103.13 and 873,010.31 is: 1,881,365.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,103.13 : 873,010.31 = 873,010.31 : x
  2. Step 2: Convert to fraction form
    405,103.13/873,010.31 = 873,010.31/x
  3. Step 3: Cross multiply
    405,103.13x = 873,010.31 × 873,010.31
  4. Step 4: Simplify right side
    405,103.13x = 762,147,005,731.35
  5. Step 5: Solve for x
    x = 762,147,005,731.35/405,103.13
  6. Step 6: Final answer
    x = 1,881,365.41

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.