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Finding the Third Proportional to 201,698 and 442,755

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Solution

The third proportional to 201,698 and 442,755 is: 971,908.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,698 : 442,755 = 442,755 : x
  2. Step 2: Convert to fraction form
    201,698/442,755 = 442,755/x
  3. Step 3: Cross multiply
    201,698x = 442,755 × 442,755
  4. Step 4: Simplify right side
    201,698x = 196,031,990,025
  5. Step 5: Solve for x
    x = 196,031,990,025/201,698
  6. Step 6: Final answer
    x = 971,908.45

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.