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Finding the Third Proportional to 413,940 and 632,790

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Solution

The third proportional to 413,940 and 632,790 is: 967,345.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,940 : 632,790 = 632,790 : x
  2. Step 2: Convert to fraction form
    413,940/632,790 = 632,790/x
  3. Step 3: Cross multiply
    413,940x = 632,790 × 632,790
  4. Step 4: Simplify right side
    413,940x = 400,423,184,100
  5. Step 5: Solve for x
    x = 400,423,184,100/413,940
  6. Step 6: Final answer
    x = 967,345.95

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.