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Finding the Fourth Proportional to 1,335.62, 1,843.08 and 746.19

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Solution

The fourth proportional to 1,335.62, 1,843.08 and 746.19 is: 1,029.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335.62 : 1,843.08 = 746.19 : x
  2. Step 2: Convert to fraction form
    1,335.62/1,843.08 = 746.19/x
  3. Step 3: Cross multiply
    1,335.62x = 1,843.08 × 746.19
  4. Step 4: Simplify right side
    1,335.62x = 1,375,287.87
  5. Step 5: Solve for x
    x = 1,375,287.87/1,335.62
  6. Step 6: Final answer
    x = 1,029.70

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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.