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Finding the Fourth Proportional to 512,381.70, 768,556.08 and 231,899.22

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Solution

The fourth proportional to 512,381.70, 768,556.08 and 231,899.22 is: 347,841.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,381.70 : 768,556.08 = 231,899.22 : x
  2. Step 2: Convert to fraction form
    512,381.70/768,556.08 = 231,899.22/x
  3. Step 3: Cross multiply
    512,381.70x = 768,556.08 × 231,899.22
  4. Step 4: Simplify right side
    512,381.70x = 178,227,555,478.26
  5. Step 5: Solve for x
    x = 178,227,555,478.26/512,381.70
  6. Step 6: Final answer
    x = 347,841.38

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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.