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Finding the Third Proportional to 356,916 and 475,836

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Solution

The third proportional to 356,916 and 475,836 is: 634,378.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,916 : 475,836 = 475,836 : x
  2. Step 2: Convert to fraction form
    356,916/475,836 = 475,836/x
  3. Step 3: Cross multiply
    356,916x = 475,836 × 475,836
  4. Step 4: Simplify right side
    356,916x = 226,419,898,896
  5. Step 5: Solve for x
    x = 226,419,898,896/356,916
  6. Step 6: Final answer
    x = 634,378.67

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.