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Finding the Third Proportional to 262,071 and 392,697

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Solution

The third proportional to 262,071 and 392,697 is: 588,431.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,071 : 392,697 = 392,697 : x
  2. Step 2: Convert to fraction form
    262,071/392,697 = 392,697/x
  3. Step 3: Cross multiply
    262,071x = 392,697 × 392,697
  4. Step 4: Simplify right side
    262,071x = 154,210,933,809
  5. Step 5: Solve for x
    x = 154,210,933,809/262,071
  6. Step 6: Final answer
    x = 588,431.89

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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.