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Finding the Fourth Proportional to 404,441.48, 606,640.26 and 123,959.48

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Solution

The fourth proportional to 404,441.48, 606,640.26 and 123,959.48 is: 185,932.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,441.48 : 606,640.26 = 123,959.48 : x
  2. Step 2: Convert to fraction form
    404,441.48/606,640.26 = 123,959.48/x
  3. Step 3: Cross multiply
    404,441.48x = 606,640.26 × 123,959.48
  4. Step 4: Simplify right side
    404,441.48x = 75,198,811,176.66
  5. Step 5: Solve for x
    x = 75,198,811,176.66/404,441.48
  6. Step 6: Final answer
    x = 185,932.49

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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.