Home / 419,747.59-579,234.81-228,756.88

Finding the Fourth Proportional to 419,747.59, 579,234.81 and 228,756.88

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Solution

The fourth proportional to 419,747.59, 579,234.81 and 228,756.88 is: 315,675.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,747.59 : 579,234.81 = 228,756.88 : x
  2. Step 2: Convert to fraction form
    419,747.59/579,234.81 = 228,756.88/x
  3. Step 3: Cross multiply
    419,747.59x = 579,234.81 × 228,756.88
  4. Step 4: Simplify right side
    419,747.59x = 132,503,947,922.99
  5. Step 5: Solve for x
    x = 132,503,947,922.99/419,747.59
  6. Step 6: Final answer
    x = 315,675.30

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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.