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Finding the Fourth Proportional to 2,283.36, 3,424.32 and 744

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Solution

The fourth proportional to 2,283.36, 3,424.32 and 744 is: 1,115.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,283.36 : 3,424.32 = 744 : x
  2. Step 2: Convert to fraction form
    2,283.36/3,424.32 = 744/x
  3. Step 3: Cross multiply
    2,283.36x = 3,424.32 × 744
  4. Step 4: Simplify right side
    2,283.36x = 2,547,694.08
  5. Step 5: Solve for x
    x = 2,547,694.08/2,283.36
  6. Step 6: Final answer
    x = 1,115.77

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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.