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Finding the Fourth Proportional to 263,992.80, 395,989.20 and 235,999.20

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Solution

The fourth proportional to 263,992.80, 395,989.20 and 235,999.20 is: 353,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,992.80 : 395,989.20 = 235,999.20 : x
  2. Step 2: Convert to fraction form
    263,992.80/395,989.20 = 235,999.20/x
  3. Step 3: Cross multiply
    263,992.80x = 395,989.20 × 235,999.20
  4. Step 4: Simplify right side
    263,992.80x = 93,453,134,408.64
  5. Step 5: Solve for x
    x = 93,453,134,408.64/263,992.80
  6. Step 6: Final answer
    x = 353,998.80

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Similar ratio
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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.