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Finding the Third Proportional to 196,560 and 424,512

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Solution

The third proportional to 196,560 and 424,512 is: 916,821.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,560 : 424,512 = 424,512 : x
  2. Step 2: Convert to fraction form
    196,560/424,512 = 424,512/x
  3. Step 3: Cross multiply
    196,560x = 424,512 × 424,512
  4. Step 4: Simplify right side
    196,560x = 180,210,438,144
  5. Step 5: Solve for x
    x = 180,210,438,144/196,560
  6. Step 6: Final answer
    x = 916,821.52

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.