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Finding the Third Proportional to 259,644 and 392,274

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Solution

The third proportional to 259,644 and 392,274 is: 592,653.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,644 : 392,274 = 392,274 : x
  2. Step 2: Convert to fraction form
    259,644/392,274 = 392,274/x
  3. Step 3: Cross multiply
    259,644x = 392,274 × 392,274
  4. Step 4: Simplify right side
    259,644x = 153,878,891,076
  5. Step 5: Solve for x
    x = 153,878,891,076/259,644
  6. Step 6: Final answer
    x = 592,653.37

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.