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Finding the Fourth Proportional to 962.26, 1,443.99 and 475.34

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Solution

The fourth proportional to 962.26, 1,443.99 and 475.34 is: 713.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.26 : 1,443.99 = 475.34 : x
  2. Step 2: Convert to fraction form
    962.26/1,443.99 = 475.34/x
  3. Step 3: Cross multiply
    962.26x = 1,443.99 × 475.34
  4. Step 4: Simplify right side
    962.26x = 686,386.21
  5. Step 5: Solve for x
    x = 686,386.21/962.26
  6. Step 6: Final answer
    x = 713.31

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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.