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Finding the Third Proportional to 424,400 and 923,446

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Solution

The third proportional to 424,400 and 923,446 is: 2,009,313.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,400 : 923,446 = 923,446 : x
  2. Step 2: Convert to fraction form
    424,400/923,446 = 923,446/x
  3. Step 3: Cross multiply
    424,400x = 923,446 × 923,446
  4. Step 4: Simplify right side
    424,400x = 852,752,514,916
  5. Step 5: Solve for x
    x = 852,752,514,916/424,400
  6. Step 6: Final answer
    x = 2,009,313.18

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.