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Finding the Fourth Proportional to 1,063.25, 1,467.22 and 591.11

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Solution

The fourth proportional to 1,063.25, 1,467.22 and 591.11 is: 815.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,063.25 : 1,467.22 = 591.11 : x
  2. Step 2: Convert to fraction form
    1,063.25/1,467.22 = 591.11/x
  3. Step 3: Cross multiply
    1,063.25x = 1,467.22 × 591.11
  4. Step 4: Simplify right side
    1,063.25x = 867,290.60
  5. Step 5: Solve for x
    x = 867,290.60/1,063.25
  6. Step 6: Final answer
    x = 815.70

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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.