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Finding the Third Proportional to 445,202 and 990,073

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Solution

The third proportional to 445,202 and 990,073 is: 2,201,797.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,202 : 990,073 = 990,073 : x
  2. Step 2: Convert to fraction form
    445,202/990,073 = 990,073/x
  3. Step 3: Cross multiply
    445,202x = 990,073 × 990,073
  4. Step 4: Simplify right side
    445,202x = 980,244,545,329
  5. Step 5: Solve for x
    x = 980,244,545,329/445,202
  6. Step 6: Final answer
    x = 2,201,797.26

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.