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Finding the Fourth Proportional to 955.92, 1,434.30 and 469.44

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Solution

The fourth proportional to 955.92, 1,434.30 and 469.44 is: 704.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.92 : 1,434.30 = 469.44 : x
  2. Step 2: Convert to fraction form
    955.92/1,434.30 = 469.44/x
  3. Step 3: Cross multiply
    955.92x = 1,434.30 × 469.44
  4. Step 4: Simplify right side
    955.92x = 673,317.79
  5. Step 5: Solve for x
    x = 673,317.79/955.92
  6. Step 6: Final answer
    x = 704.37

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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.