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Finding the Fourth Proportional to 1,134, 1,702.22 and 558.09

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Solution

The fourth proportional to 1,134, 1,702.22 and 558.09 is: 837.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134 : 1,702.22 = 558.09 : x
  2. Step 2: Convert to fraction form
    1,134/1,702.22 = 558.09/x
  3. Step 3: Cross multiply
    1,134x = 1,702.22 × 558.09
  4. Step 4: Simplify right side
    1,134x = 949,989.17
  5. Step 5: Solve for x
    x = 949,989.17/1,134
  6. Step 6: Final answer
    x = 837.73

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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.