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Finding the Fourth Proportional to 1,361.84, 2,043.57 and 496.22

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Solution

The fourth proportional to 1,361.84, 2,043.57 and 496.22 is: 744.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361.84 : 2,043.57 = 496.22 : x
  2. Step 2: Convert to fraction form
    1,361.84/2,043.57 = 496.22/x
  3. Step 3: Cross multiply
    1,361.84x = 2,043.57 × 496.22
  4. Step 4: Simplify right side
    1,361.84x = 1,014,060.31
  5. Step 5: Solve for x
    x = 1,014,060.31/1,361.84
  6. Step 6: Final answer
    x = 744.63

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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.