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Finding the Third Proportional to 248,976 and 386,160

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Solution

The third proportional to 248,976 and 386,160 is: 598,931.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,976 : 386,160 = 386,160 : x
  2. Step 2: Convert to fraction form
    248,976/386,160 = 386,160/x
  3. Step 3: Cross multiply
    248,976x = 386,160 × 386,160
  4. Step 4: Simplify right side
    248,976x = 149,119,545,600
  5. Step 5: Solve for x
    x = 149,119,545,600/248,976
  6. Step 6: Final answer
    x = 598,931.41

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.