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Finding the Fourth Proportional to 968.79, 1,336.96 and 595.99

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Solution

The fourth proportional to 968.79, 1,336.96 and 595.99 is: 822.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.79 : 1,336.96 = 595.99 : x
  2. Step 2: Convert to fraction form
    968.79/1,336.96 = 595.99/x
  3. Step 3: Cross multiply
    968.79x = 1,336.96 × 595.99
  4. Step 4: Simplify right side
    968.79x = 796,806.33
  5. Step 5: Solve for x
    x = 796,806.33/968.79
  6. Step 6: Final answer
    x = 822.48

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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.