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Finding the Fourth Proportional to 1,182.24, 1,630.94 and 739.37

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Solution

The fourth proportional to 1,182.24, 1,630.94 and 739.37 is: 1,019.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182.24 : 1,630.94 = 739.37 : x
  2. Step 2: Convert to fraction form
    1,182.24/1,630.94 = 739.37/x
  3. Step 3: Cross multiply
    1,182.24x = 1,630.94 × 739.37
  4. Step 4: Simplify right side
    1,182.24x = 1,205,856.26
  5. Step 5: Solve for x
    x = 1,205,856.26/1,182.24
  6. Step 6: Final answer
    x = 1,019.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.