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Finding the Third Proportional to 405,245 and 881,845

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Solution

The third proportional to 405,245 and 881,845 is: 1,918,964.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,245 : 881,845 = 881,845 : x
  2. Step 2: Convert to fraction form
    405,245/881,845 = 881,845/x
  3. Step 3: Cross multiply
    405,245x = 881,845 × 881,845
  4. Step 4: Simplify right side
    405,245x = 777,650,604,025
  5. Step 5: Solve for x
    x = 777,650,604,025/405,245
  6. Step 6: Final answer
    x = 1,918,964.09

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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.