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Finding the Fourth Proportional to 1,361.64, 2,042.73 and 496.02

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Solution

The fourth proportional to 1,361.64, 2,042.73 and 496.02 is: 744.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361.64 : 2,042.73 = 496.02 : x
  2. Step 2: Convert to fraction form
    1,361.64/2,042.73 = 496.02/x
  3. Step 3: Cross multiply
    1,361.64x = 2,042.73 × 496.02
  4. Step 4: Simplify right side
    1,361.64x = 1,013,234.93
  5. Step 5: Solve for x
    x = 1,013,234.93/1,361.64
  6. Step 6: Final answer
    x = 744.13

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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.