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Finding the Fourth Proportional to 324,808.70, 486,521.85 and 262,600.70

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Solution

The fourth proportional to 324,808.70, 486,521.85 and 262,600.70 is: 393,342.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,808.70 : 486,521.85 = 262,600.70 : x
  2. Step 2: Convert to fraction form
    324,808.70/486,521.85 = 262,600.70/x
  3. Step 3: Cross multiply
    324,808.70x = 486,521.85 × 262,600.70
  4. Step 4: Simplify right side
    324,808.70x = 127,760,978,375.30
  5. Step 5: Solve for x
    x = 127,760,978,375.30/324,808.70
  6. Step 6: Final answer
    x = 393,342.23

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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.