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Finding the Fourth Proportional to 339,436.21, 468,369.89 and 196,168.58

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Solution

The fourth proportional to 339,436.21, 468,369.89 and 196,168.58 is: 270,682.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,436.21 : 468,369.89 = 196,168.58 : x
  2. Step 2: Convert to fraction form
    339,436.21/468,369.89 = 196,168.58/x
  3. Step 3: Cross multiply
    339,436.21x = 468,369.89 × 196,168.58
  4. Step 4: Simplify right side
    339,436.21x = 91,879,456,236.06
  5. Step 5: Solve for x
    x = 91,879,456,236.06/339,436.21
  6. Step 6: Final answer
    x = 270,682.54

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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.