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Finding the Fourth Proportional to 967.23, 1,334.74 and 525.12

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Solution

The fourth proportional to 967.23, 1,334.74 and 525.12 is: 724.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.23 : 1,334.74 = 525.12 : x
  2. Step 2: Convert to fraction form
    967.23/1,334.74 = 525.12/x
  3. Step 3: Cross multiply
    967.23x = 1,334.74 × 525.12
  4. Step 4: Simplify right side
    967.23x = 700,897.36
  5. Step 5: Solve for x
    x = 700,897.36/967.23
  6. Step 6: Final answer
    x = 724.64

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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.