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Finding the Fourth Proportional to 967.33, 1,334.91 and 525.25

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Solution

The fourth proportional to 967.33, 1,334.91 and 525.25 is: 724.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.33 : 1,334.91 = 525.25 : x
  2. Step 2: Convert to fraction form
    967.33/1,334.91 = 525.25/x
  3. Step 3: Cross multiply
    967.33x = 1,334.91 × 525.25
  4. Step 4: Simplify right side
    967.33x = 701,161.48
  5. Step 5: Solve for x
    x = 701,161.48/967.33
  6. Step 6: Final answer
    x = 724.84

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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.