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Finding the Fourth Proportional to 1,033.85, 1,426.65 and 568.10

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Solution

The fourth proportional to 1,033.85, 1,426.65 and 568.10 is: 783.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,033.85 : 1,426.65 = 568.10 : x
  2. Step 2: Convert to fraction form
    1,033.85/1,426.65 = 568.10/x
  3. Step 3: Cross multiply
    1,033.85x = 1,426.65 × 568.10
  4. Step 4: Simplify right side
    1,033.85x = 810,479.87
  5. Step 5: Solve for x
    x = 810,479.87/1,033.85
  6. Step 6: Final answer
    x = 783.94

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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.