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Finding the Fourth Proportional to 968.72, 1,336.74 and 595.71

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Solution

The fourth proportional to 968.72, 1,336.74 and 595.71 is: 822.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.72 : 1,336.74 = 595.71 : x
  2. Step 2: Convert to fraction form
    968.72/1,336.74 = 595.71/x
  3. Step 3: Cross multiply
    968.72x = 1,336.74 × 595.71
  4. Step 4: Simplify right side
    968.72x = 796,309.39
  5. Step 5: Solve for x
    x = 796,309.39/968.72
  6. Step 6: Final answer
    x = 822.03

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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.