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Finding the Fourth Proportional to 231,920.80, 347,362.80 and 226,736.80

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Solution

The fourth proportional to 231,920.80, 347,362.80 and 226,736.80 is: 339,598.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,920.80 : 347,362.80 = 226,736.80 : x
  2. Step 2: Convert to fraction form
    231,920.80/347,362.80 = 226,736.80/x
  3. Step 3: Cross multiply
    231,920.80x = 347,362.80 × 226,736.80
  4. Step 4: Simplify right side
    231,920.80x = 78,759,929,711.04
  5. Step 5: Solve for x
    x = 78,759,929,711.04/231,920.80
  6. Step 6: Final answer
    x = 339,598.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.