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Finding the Fourth Proportional to 1,174.44, 1,761.84 and 558.36

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Solution

The fourth proportional to 1,174.44, 1,761.84 and 558.36 is: 837.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.44 : 1,761.84 = 558.36 : x
  2. Step 2: Convert to fraction form
    1,174.44/1,761.84 = 558.36/x
  3. Step 3: Cross multiply
    1,174.44x = 1,761.84 × 558.36
  4. Step 4: Simplify right side
    1,174.44x = 983,740.98
  5. Step 5: Solve for x
    x = 983,740.98/1,174.44
  6. Step 6: Final answer
    x = 837.63

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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.