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Finding the Fourth Proportional to 969.44, 1,337.84 and 576.52

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Solution

The fourth proportional to 969.44, 1,337.84 and 576.52 is: 795.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    969.44 : 1,337.84 = 576.52 : x
  2. Step 2: Convert to fraction form
    969.44/1,337.84 = 576.52/x
  3. Step 3: Cross multiply
    969.44x = 1,337.84 × 576.52
  4. Step 4: Simplify right side
    969.44x = 771,291.52
  5. Step 5: Solve for x
    x = 771,291.52/969.44
  6. Step 6: Final answer
    x = 795.61

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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.