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Finding the Fourth Proportional to 3,082.91, 4,624.37 and 774.41

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Solution

The fourth proportional to 3,082.91, 4,624.37 and 774.41 is: 1,161.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,082.91 : 4,624.37 = 774.41 : x
  2. Step 2: Convert to fraction form
    3,082.91/4,624.37 = 774.41/x
  3. Step 3: Cross multiply
    3,082.91x = 4,624.37 × 774.41
  4. Step 4: Simplify right side
    3,082.91x = 3,581,158.37
  5. Step 5: Solve for x
    x = 3,581,158.37/3,082.91
  6. Step 6: Final answer
    x = 1,161.62

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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.