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Finding the Fourth Proportional to 394,015.44, 590,998.86 and 157,187.64

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Solution

The fourth proportional to 394,015.44, 590,998.86 and 157,187.64 is: 235,771.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,015.44 : 590,998.86 = 157,187.64 : x
  2. Step 2: Convert to fraction form
    394,015.44/590,998.86 = 157,187.64/x
  3. Step 3: Cross multiply
    394,015.44x = 590,998.86 × 157,187.64
  4. Step 4: Simplify right side
    394,015.44x = 92,897,716,046.09
  5. Step 5: Solve for x
    x = 92,897,716,046.09/394,015.44
  6. Step 6: Final answer
    x = 235,771.77

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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.