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Finding the Fourth Proportional to 969.36, 1,452.60 and 583.68

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Solution

The fourth proportional to 969.36, 1,452.60 and 583.68 is: 874.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    969.36 : 1,452.60 = 583.68 : x
  2. Step 2: Convert to fraction form
    969.36/1,452.60 = 583.68/x
  3. Step 3: Cross multiply
    969.36x = 1,452.60 × 583.68
  4. Step 4: Simplify right side
    969.36x = 847,853.57
  5. Step 5: Solve for x
    x = 847,853.57/969.36
  6. Step 6: Final answer
    x = 874.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.