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Finding the Fourth Proportional to 1,369.46, 2,052.74 and 675.18

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Solution

The fourth proportional to 1,369.46, 2,052.74 and 675.18 is: 1,012.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369.46 : 2,052.74 = 675.18 : x
  2. Step 2: Convert to fraction form
    1,369.46/2,052.74 = 675.18/x
  3. Step 3: Cross multiply
    1,369.46x = 2,052.74 × 675.18
  4. Step 4: Simplify right side
    1,369.46x = 1,385,968.99
  5. Step 5: Solve for x
    x = 1,385,968.99/1,369.46
  6. Step 6: Final answer
    x = 1,012.06

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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.