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Finding the Third Proportional to 196,122 and 423,348

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Solution

The third proportional to 196,122 and 423,348 is: 913,836.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,122 : 423,348 = 423,348 : x
  2. Step 2: Convert to fraction form
    196,122/423,348 = 423,348/x
  3. Step 3: Cross multiply
    196,122x = 423,348 × 423,348
  4. Step 4: Simplify right side
    196,122x = 179,223,529,104
  5. Step 5: Solve for x
    x = 179,223,529,104/196,122
  6. Step 6: Final answer
    x = 913,836.94

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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.