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Finding the Fourth Proportional to 2,930.26, 4,396.05 and 955.99

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Solution

The fourth proportional to 2,930.26, 4,396.05 and 955.99 is: 1,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.26 : 4,396.05 = 955.99 : x
  2. Step 2: Convert to fraction form
    2,930.26/4,396.05 = 955.99/x
  3. Step 3: Cross multiply
    2,930.26x = 4,396.05 × 955.99
  4. Step 4: Simplify right side
    2,930.26x = 4,202,579.84
  5. Step 5: Solve for x
    x = 4,202,579.84/2,930.26
  6. Step 6: Final answer
    x = 1,434.20

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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.