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Finding the Third Proportional to 262,122 and 392,772

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Solution

The third proportional to 262,122 and 392,772 is: 588,542.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,122 : 392,772 = 392,772 : x
  2. Step 2: Convert to fraction form
    262,122/392,772 = 392,772/x
  3. Step 3: Cross multiply
    262,122x = 392,772 × 392,772
  4. Step 4: Simplify right side
    262,122x = 154,269,843,984
  5. Step 5: Solve for x
    x = 154,269,843,984/262,122
  6. Step 6: Final answer
    x = 588,542.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.