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Finding the Fourth Proportional to 339,588.46, 468,604.65 and 196,357.78

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Solution

The fourth proportional to 339,588.46, 468,604.65 and 196,357.78 is: 270,957.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,588.46 : 468,604.65 = 196,357.78 : x
  2. Step 2: Convert to fraction form
    339,588.46/468,604.65 = 196,357.78/x
  3. Step 3: Cross multiply
    339,588.46x = 468,604.65 × 196,357.78
  4. Step 4: Simplify right side
    339,588.46x = 92,014,168,771.68
  5. Step 5: Solve for x
    x = 92,014,168,771.68/339,588.46
  6. Step 6: Final answer
    x = 270,957.88

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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.