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Finding the Third Proportional to 190,604 and 414,408

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Solution

The third proportional to 190,604 and 414,408 is: 900,998.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,604 : 414,408 = 414,408 : x
  2. Step 2: Convert to fraction form
    190,604/414,408 = 414,408/x
  3. Step 3: Cross multiply
    190,604x = 414,408 × 414,408
  4. Step 4: Simplify right side
    190,604x = 171,733,990,464
  5. Step 5: Solve for x
    x = 171,733,990,464/190,604
  6. Step 6: Final answer
    x = 900,998.88

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.