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Finding the Third Proportional to 175,154 and 379,396

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Solution

The third proportional to 175,154 and 379,396 is: 821,798.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,154 : 379,396 = 379,396 : x
  2. Step 2: Convert to fraction form
    175,154/379,396 = 379,396/x
  3. Step 3: Cross multiply
    175,154x = 379,396 × 379,396
  4. Step 4: Simplify right side
    175,154x = 143,941,324,816
  5. Step 5: Solve for x
    x = 143,941,324,816/175,154
  6. Step 6: Final answer
    x = 821,798.67

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.