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Finding the Fourth Proportional to 1,033.88, 1,426.70 and 568.13

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Solution

The fourth proportional to 1,033.88, 1,426.70 and 568.13 is: 783.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,033.88 : 1,426.70 = 568.13 : x
  2. Step 2: Convert to fraction form
    1,033.88/1,426.70 = 568.13/x
  3. Step 3: Cross multiply
    1,033.88x = 1,426.70 × 568.13
  4. Step 4: Simplify right side
    1,033.88x = 810,548.23
  5. Step 5: Solve for x
    x = 810,548.23/1,033.88
  6. Step 6: Final answer
    x = 783.99

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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.