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Finding the Third Proportional to 262,075 and 392,703

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Solution

The third proportional to 262,075 and 392,703 is: 588,440.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,075 : 392,703 = 392,703 : x
  2. Step 2: Convert to fraction form
    262,075/392,703 = 392,703/x
  3. Step 3: Cross multiply
    262,075x = 392,703 × 392,703
  4. Step 4: Simplify right side
    262,075x = 154,215,646,209
  5. Step 5: Solve for x
    x = 154,215,646,209/262,075
  6. Step 6: Final answer
    x = 588,440.89

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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.