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Finding the Fourth Proportional to 322,622.11, 445,215.81 and 179,380.90

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Solution

The fourth proportional to 322,622.11, 445,215.81 and 179,380.90 is: 247,544.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,622.11 : 445,215.81 = 179,380.90 : x
  2. Step 2: Convert to fraction form
    322,622.11/445,215.81 = 179,380.90/x
  3. Step 3: Cross multiply
    322,622.11x = 445,215.81 × 179,380.90
  4. Step 4: Simplify right side
    322,622.11x = 79,863,212,164.55
  5. Step 5: Solve for x
    x = 79,863,212,164.55/322,622.11
  6. Step 6: Final answer
    x = 247,544.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.