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Finding the Fourth Proportional to 475,287.39, 655,651.26 and 322,273.80

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Solution

The fourth proportional to 475,287.39, 655,651.26 and 322,273.80 is: 444,571.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,287.39 : 655,651.26 = 322,273.80 : x
  2. Step 2: Convert to fraction form
    475,287.39/655,651.26 = 322,273.80/x
  3. Step 3: Cross multiply
    475,287.39x = 655,651.26 × 322,273.80
  4. Step 4: Simplify right side
    475,287.39x = 211,299,223,034.99
  5. Step 5: Solve for x
    x = 211,299,223,034.99/475,287.39
  6. Step 6: Final answer
    x = 444,571.49

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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.