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Finding the Fourth Proportional to 339,399.64, 468,344.08 and 196,168.96

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Solution

The fourth proportional to 339,399.64, 468,344.08 and 196,168.96 is: 270,697.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,399.64 : 468,344.08 = 196,168.96 : x
  2. Step 2: Convert to fraction form
    339,399.64/468,344.08 = 196,168.96/x
  3. Step 3: Cross multiply
    339,399.64x = 468,344.08 × 196,168.96
  4. Step 4: Simplify right side
    339,399.64x = 91,874,571,095.76
  5. Step 5: Solve for x
    x = 91,874,571,095.76/339,399.64
  6. Step 6: Final answer
    x = 270,697.31

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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.