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Finding the Fourth Proportional to 394,410.60, 591,615.90 and 184,069.80

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Solution

The fourth proportional to 394,410.60, 591,615.90 and 184,069.80 is: 276,104.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,410.60 : 591,615.90 = 184,069.80 : x
  2. Step 2: Convert to fraction form
    394,410.60/591,615.90 = 184,069.80/x
  3. Step 3: Cross multiply
    394,410.60x = 591,615.90 × 184,069.80
  4. Step 4: Simplify right side
    394,410.60x = 108,898,620,389.82
  5. Step 5: Solve for x
    x = 108,898,620,389.82/394,410.60
  6. Step 6: Final answer
    x = 276,104.70

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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.