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Finding the Fourth Proportional to 950.89, 1,424.97 and 707.59

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Solution

The fourth proportional to 950.89, 1,424.97 and 707.59 is: 1,060.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    950.89 : 1,424.97 = 707.59 : x
  2. Step 2: Convert to fraction form
    950.89/1,424.97 = 707.59/x
  3. Step 3: Cross multiply
    950.89x = 1,424.97 × 707.59
  4. Step 4: Simplify right side
    950.89x = 1,008,286.30
  5. Step 5: Solve for x
    x = 1,008,286.30/950.89
  6. Step 6: Final answer
    x = 1,060.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.