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Finding the Fourth Proportional to 968.46, 1,336.53 and 575.46

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Solution

The fourth proportional to 968.46, 1,336.53 and 575.46 is: 794.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.46 : 1,336.53 = 575.46 : x
  2. Step 2: Convert to fraction form
    968.46/1,336.53 = 575.46/x
  3. Step 3: Cross multiply
    968.46x = 1,336.53 × 575.46
  4. Step 4: Simplify right side
    968.46x = 769,119.55
  5. Step 5: Solve for x
    x = 769,119.55/968.46
  6. Step 6: Final answer
    x = 794.17

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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.