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Finding the Fourth Proportional to 930.92, 1,283.76 and 599.44

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Solution

The fourth proportional to 930.92, 1,283.76 and 599.44 is: 826.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    930.92 : 1,283.76 = 599.44 : x
  2. Step 2: Convert to fraction form
    930.92/1,283.76 = 599.44/x
  3. Step 3: Cross multiply
    930.92x = 1,283.76 × 599.44
  4. Step 4: Simplify right side
    930.92x = 769,537.09
  5. Step 5: Solve for x
    x = 769,537.09/930.92
  6. Step 6: Final answer
    x = 826.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.