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Finding the Fourth Proportional to 1,063.04, 1,467.14 and 690.44

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Solution

The fourth proportional to 1,063.04, 1,467.14 and 690.44 is: 952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,063.04 : 1,467.14 = 690.44 : x
  2. Step 2: Convert to fraction form
    1,063.04/1,467.14 = 690.44/x
  3. Step 3: Cross multiply
    1,063.04x = 1,467.14 × 690.44
  4. Step 4: Simplify right side
    1,063.04x = 1,012,972.14
  5. Step 5: Solve for x
    x = 1,012,972.14/1,063.04
  6. Step 6: Final answer
    x = 952.90

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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.