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Finding the Fourth Proportional to 968.70, 1,336.79 and 595.54

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Solution

The fourth proportional to 968.70, 1,336.79 and 595.54 is: 821.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.70 : 1,336.79 = 595.54 : x
  2. Step 2: Convert to fraction form
    968.70/1,336.79 = 595.54/x
  3. Step 3: Cross multiply
    968.70x = 1,336.79 × 595.54
  4. Step 4: Simplify right side
    968.70x = 796,111.92
  5. Step 5: Solve for x
    x = 796,111.92/968.70
  6. Step 6: Final answer
    x = 821.84

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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.