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Finding the Fourth Proportional to 967.93, 1,335.74 and 525.83

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Solution

The fourth proportional to 967.93, 1,335.74 and 525.83 is: 725.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.93 : 1,335.74 = 525.83 : x
  2. Step 2: Convert to fraction form
    967.93/1,335.74 = 525.83/x
  3. Step 3: Cross multiply
    967.93x = 1,335.74 × 525.83
  4. Step 4: Simplify right side
    967.93x = 702,372.16
  5. Step 5: Solve for x
    x = 702,372.16/967.93
  6. Step 6: Final answer
    x = 725.64

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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.