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Finding the Fourth Proportional to 297,912.69, 411,073.92 and 168,843.78

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Solution

The fourth proportional to 297,912.69, 411,073.92 and 168,843.78 is: 232,978.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,912.69 : 411,073.92 = 168,843.78 : x
  2. Step 2: Convert to fraction form
    297,912.69/411,073.92 = 168,843.78/x
  3. Step 3: Cross multiply
    297,912.69x = 411,073.92 × 168,843.78
  4. Step 4: Simplify right side
    297,912.69x = 69,407,274,512.22
  5. Step 5: Solve for x
    x = 69,407,274,512.22/297,912.69
  6. Step 6: Final answer
    x = 232,978.58

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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.