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Finding the Fourth Proportional to 1,033.21, 1,425.86 and 567.46

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Solution

The fourth proportional to 1,033.21, 1,425.86 and 567.46 is: 783.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,033.21 : 1,425.86 = 567.46 : x
  2. Step 2: Convert to fraction form
    1,033.21/1,425.86 = 567.46/x
  3. Step 3: Cross multiply
    1,033.21x = 1,425.86 × 567.46
  4. Step 4: Simplify right side
    1,033.21x = 809,118.52
  5. Step 5: Solve for x
    x = 809,118.52/1,033.21
  6. Step 6: Final answer
    x = 783.11

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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.