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Finding the Fourth Proportional to 959.88, 1,324.91 and 567.03

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Solution

The fourth proportional to 959.88, 1,324.91 and 567.03 is: 782.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    959.88 : 1,324.91 = 567.03 : x
  2. Step 2: Convert to fraction form
    959.88/1,324.91 = 567.03/x
  3. Step 3: Cross multiply
    959.88x = 1,324.91 × 567.03
  4. Step 4: Simplify right side
    959.88x = 751,263.72
  5. Step 5: Solve for x
    x = 751,263.72/959.88
  6. Step 6: Final answer
    x = 782.66

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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.