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Finding the Fourth Proportional to 2,266.79, 3,399.74 and 622.91

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Solution

The fourth proportional to 2,266.79, 3,399.74 and 622.91 is: 934.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,266.79 : 3,399.74 = 622.91 : x
  2. Step 2: Convert to fraction form
    2,266.79/3,399.74 = 622.91/x
  3. Step 3: Cross multiply
    2,266.79x = 3,399.74 × 622.91
  4. Step 4: Simplify right side
    2,266.79x = 2,117,728.93
  5. Step 5: Solve for x
    x = 2,117,728.93/2,266.79
  6. Step 6: Final answer
    x = 934.24

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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.