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Finding the Fourth Proportional to 967.36, 1,334.98 and 525.28

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Solution

The fourth proportional to 967.36, 1,334.98 and 525.28 is: 724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.36 : 1,334.98 = 525.28 : x
  2. Step 2: Convert to fraction form
    967.36/1,334.98 = 525.28/x
  3. Step 3: Cross multiply
    967.36x = 1,334.98 × 525.28
  4. Step 4: Simplify right side
    967.36x = 701,238.29
  5. Step 5: Solve for x
    x = 701,238.29/967.36
  6. Step 6: Final answer
    x = 724.90

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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.