Home / 619,789.88-930,183.03-320,358.17

Finding the Fourth Proportional to 619,789.88, 930,183.03 and 320,358.17

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Solution

The fourth proportional to 619,789.88, 930,183.03 and 320,358.17 is: 480,794.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,789.88 : 930,183.03 = 320,358.17 : x
  2. Step 2: Convert to fraction form
    619,789.88/930,183.03 = 320,358.17/x
  3. Step 3: Cross multiply
    619,789.88x = 930,183.03 × 320,358.17
  4. Step 4: Simplify right side
    619,789.88x = 297,991,728,604.94
  5. Step 5: Solve for x
    x = 297,991,728,604.94/619,789.88
  6. Step 6: Final answer
    x = 480,794.77

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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.