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Finding the Fourth Proportional to 332,521.20, 499,242.60 and 262,479.60

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Solution

The fourth proportional to 332,521.20, 499,242.60 and 262,479.60 is: 394,083.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,521.20 : 499,242.60 = 262,479.60 : x
  2. Step 2: Convert to fraction form
    332,521.20/499,242.60 = 262,479.60/x
  3. Step 3: Cross multiply
    332,521.20x = 499,242.60 × 262,479.60
  4. Step 4: Simplify right side
    332,521.20x = 131,040,997,950.96
  5. Step 5: Solve for x
    x = 131,040,997,950.96/332,521.20
  6. Step 6: Final answer
    x = 394,083.14

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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.