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Finding the Third Proportional to 273,604.50 and 411,282

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Solution

The third proportional to 273,604.50 and 411,282 is: 618,238.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,604.50 : 411,282 = 411,282 : x
  2. Step 2: Convert to fraction form
    273,604.50/411,282 = 411,282/x
  3. Step 3: Cross multiply
    273,604.50x = 411,282 × 411,282
  4. Step 4: Simplify right side
    273,604.50x = 169,152,883,524
  5. Step 5: Solve for x
    x = 169,152,883,524/273,604.50
  6. Step 6: Final answer
    x = 618,238.67

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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.