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Finding the Third Proportional to 365,474 and 548,211

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Solution

The third proportional to 365,474 and 548,211 is: 822,316.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,474 : 548,211 = 548,211 : x
  2. Step 2: Convert to fraction form
    365,474/548,211 = 548,211/x
  3. Step 3: Cross multiply
    365,474x = 548,211 × 548,211
  4. Step 4: Simplify right side
    365,474x = 300,535,300,521
  5. Step 5: Solve for x
    x = 300,535,300,521/365,474
  6. Step 6: Final answer
    x = 822,316.50

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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.