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Finding the Fourth Proportional to 968.02, 1,336.44 and 746.56

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Solution

The fourth proportional to 968.02, 1,336.44 and 746.56 is: 1,030.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.02 : 1,336.44 = 746.56 : x
  2. Step 2: Convert to fraction form
    968.02/1,336.44 = 746.56/x
  3. Step 3: Cross multiply
    968.02x = 1,336.44 × 746.56
  4. Step 4: Simplify right side
    968.02x = 997,732.65
  5. Step 5: Solve for x
    x = 997,732.65/968.02
  6. Step 6: Final answer
    x = 1,030.69

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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.