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Finding the Fourth Proportional to 331,175.20, 496,762.80 and 296,960.80

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Solution

The fourth proportional to 331,175.20, 496,762.80 and 296,960.80 is: 445,441.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,175.20 : 496,762.80 = 296,960.80 : x
  2. Step 2: Convert to fraction form
    331,175.20/496,762.80 = 296,960.80/x
  3. Step 3: Cross multiply
    331,175.20x = 496,762.80 × 296,960.80
  4. Step 4: Simplify right side
    331,175.20x = 147,519,078,498.24
  5. Step 5: Solve for x
    x = 147,519,078,498.24/331,175.20
  6. Step 6: Final answer
    x = 445,441.20

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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.