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Finding the Fourth Proportional to 361,722.21, 499,183.52 and 198,368.37

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Solution

The fourth proportional to 361,722.21, 499,183.52 and 198,368.37 is: 273,752.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,722.21 : 499,183.52 = 198,368.37 : x
  2. Step 2: Convert to fraction form
    361,722.21/499,183.52 = 198,368.37/x
  3. Step 3: Cross multiply
    361,722.21x = 499,183.52 × 198,368.37
  4. Step 4: Simplify right side
    361,722.21x = 99,022,220,201.42
  5. Step 5: Solve for x
    x = 99,022,220,201.42/361,722.21
  6. Step 6: Final answer
    x = 273,752.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.