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Finding the Fourth Proportional to 544,286.20, 816,234.90 and 189,311.80

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Solution

The fourth proportional to 544,286.20, 816,234.90 and 189,311.80 is: 283,900.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,286.20 : 816,234.90 = 189,311.80 : x
  2. Step 2: Convert to fraction form
    544,286.20/816,234.90 = 189,311.80/x
  3. Step 3: Cross multiply
    544,286.20x = 816,234.90 × 189,311.80
  4. Step 4: Simplify right side
    544,286.20x = 154,522,898,141.82
  5. Step 5: Solve for x
    x = 154,522,898,141.82/544,286.20
  6. Step 6: Final answer
    x = 283,900.08

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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.