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Finding the Fourth Proportional to 1,174.13, 1,761.71 and 558.27

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Solution

The fourth proportional to 1,174.13, 1,761.71 and 558.27 is: 837.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.13 : 1,761.71 = 558.27 : x
  2. Step 2: Convert to fraction form
    1,174.13/1,761.71 = 558.27/x
  3. Step 3: Cross multiply
    1,174.13x = 1,761.71 × 558.27
  4. Step 4: Simplify right side
    1,174.13x = 983,509.84
  5. Step 5: Solve for x
    x = 983,509.84/1,174.13
  6. Step 6: Final answer
    x = 837.65

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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.