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Finding the Fourth Proportional to 331,037.80, 496,046.40 and 246,400.90

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Solution

The fourth proportional to 331,037.80, 496,046.40 and 246,400.90 is: 369,221.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,037.80 : 496,046.40 = 246,400.90 : x
  2. Step 2: Convert to fraction form
    331,037.80/496,046.40 = 246,400.90/x
  3. Step 3: Cross multiply
    331,037.80x = 496,046.40 × 246,400.90
  4. Step 4: Simplify right side
    331,037.80x = 122,226,279,401.76
  5. Step 5: Solve for x
    x = 122,226,279,401.76/331,037.80
  6. Step 6: Final answer
    x = 369,221.52

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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.