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Finding the Third Proportional to 208,057 and 447,690

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Solution

The third proportional to 208,057 and 447,690 is: 963,324.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,057 : 447,690 = 447,690 : x
  2. Step 2: Convert to fraction form
    208,057/447,690 = 447,690/x
  3. Step 3: Cross multiply
    208,057x = 447,690 × 447,690
  4. Step 4: Simplify right side
    208,057x = 200,426,336,100
  5. Step 5: Solve for x
    x = 200,426,336,100/208,057
  6. Step 6: Final answer
    x = 963,324.17

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.