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Finding the Third Proportional to 405,066 and 886,378

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Solution

The third proportional to 405,066 and 886,378 is: 1,939,599.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,066 : 886,378 = 886,378 : x
  2. Step 2: Convert to fraction form
    405,066/886,378 = 886,378/x
  3. Step 3: Cross multiply
    405,066x = 886,378 × 886,378
  4. Step 4: Simplify right side
    405,066x = 785,665,958,884
  5. Step 5: Solve for x
    x = 785,665,958,884/405,066
  6. Step 6: Final answer
    x = 1,939,599.86

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.