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Finding the Fourth Proportional to 353,286.72, 529,936.20 and 100,573.80

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Solution

The fourth proportional to 353,286.72, 529,936.20 and 100,573.80 is: 150,862.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,286.72 : 529,936.20 = 100,573.80 : x
  2. Step 2: Convert to fraction form
    353,286.72/529,936.20 = 100,573.80/x
  3. Step 3: Cross multiply
    353,286.72x = 529,936.20 × 100,573.80
  4. Step 4: Simplify right side
    353,286.72x = 53,297,697,391.56
  5. Step 5: Solve for x
    x = 53,297,697,391.56/353,286.72
  6. Step 6: Final answer
    x = 150,862.44

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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.