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Finding the Fourth Proportional to 1,252.56, 1,878.84 and 1,176.44

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Solution

The fourth proportional to 1,252.56, 1,878.84 and 1,176.44 is: 1,764.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252.56 : 1,878.84 = 1,176.44 : x
  2. Step 2: Convert to fraction form
    1,252.56/1,878.84 = 1,176.44/x
  3. Step 3: Cross multiply
    1,252.56x = 1,878.84 × 1,176.44
  4. Step 4: Simplify right side
    1,252.56x = 2,210,343.70
  5. Step 5: Solve for x
    x = 2,210,343.70/1,252.56
  6. Step 6: Final answer
    x = 1,764.66

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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.