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Finding the Fourth Proportional to 339,439.80, 468,374.91 and 196,172.22

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Solution

The fourth proportional to 339,439.80, 468,374.91 and 196,172.22 is: 270,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,439.80 : 468,374.91 = 196,172.22 : x
  2. Step 2: Convert to fraction form
    339,439.80/468,374.91 = 196,172.22/x
  3. Step 3: Cross multiply
    339,439.80x = 468,374.91 × 196,172.22
  4. Step 4: Simplify right side
    339,439.80x = 91,882,145,887.00
  5. Step 5: Solve for x
    x = 91,882,145,887.00/339,439.80
  6. Step 6: Final answer
    x = 270,687.60

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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.