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Finding the Fourth Proportional to 1,033.75, 1,426.58 and 568.03

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Solution

The fourth proportional to 1,033.75, 1,426.58 and 568.03 is: 783.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,033.75 : 1,426.58 = 568.03 : x
  2. Step 2: Convert to fraction form
    1,033.75/1,426.58 = 568.03/x
  3. Step 3: Cross multiply
    1,033.75x = 1,426.58 × 568.03
  4. Step 4: Simplify right side
    1,033.75x = 810,340.24
  5. Step 5: Solve for x
    x = 810,340.24/1,033.75
  6. Step 6: Final answer
    x = 783.88

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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.