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Finding the Fourth Proportional to 394,346.40, 591,519.60 and 236,493.60

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Solution

The fourth proportional to 394,346.40, 591,519.60 and 236,493.60 is: 354,740.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,346.40 : 591,519.60 = 236,493.60 : x
  2. Step 2: Convert to fraction form
    394,346.40/591,519.60 = 236,493.60/x
  3. Step 3: Cross multiply
    394,346.40x = 591,519.60 × 236,493.60
  4. Step 4: Simplify right side
    394,346.40x = 139,890,599,674.56
  5. Step 5: Solve for x
    x = 139,890,599,674.56/394,346.40
  6. Step 6: Final answer
    x = 354,740.40

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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.