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Finding the Fourth Proportional to 1,330.44, 1,996.69 and 922.44

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Solution

The fourth proportional to 1,330.44, 1,996.69 and 922.44 is: 1,384.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.44 : 1,996.69 = 922.44 : x
  2. Step 2: Convert to fraction form
    1,330.44/1,996.69 = 922.44/x
  3. Step 3: Cross multiply
    1,330.44x = 1,996.69 × 922.44
  4. Step 4: Simplify right side
    1,330.44x = 1,841,826.72
  5. Step 5: Solve for x
    x = 1,841,826.72/1,330.44
  6. Step 6: Final answer
    x = 1,384.37

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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.