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Finding the Fourth Proportional to 303,906.60, 419,416.37 and 167,967.09

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Solution

The fourth proportional to 303,906.60, 419,416.37 and 167,967.09 is: 231,808.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,906.60 : 419,416.37 = 167,967.09 : x
  2. Step 2: Convert to fraction form
    303,906.60/419,416.37 = 167,967.09/x
  3. Step 3: Cross multiply
    303,906.60x = 419,416.37 × 167,967.09
  4. Step 4: Simplify right side
    303,906.60x = 70,448,146,327.43
  5. Step 5: Solve for x
    x = 70,448,146,327.43/303,906.60
  6. Step 6: Final answer
    x = 231,808.54

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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.