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Finding the Fourth Proportional to 962.91, 1,441.67 and 522.58

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Solution

The fourth proportional to 962.91, 1,441.67 and 522.58 is: 782.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.91 : 1,441.67 = 522.58 : x
  2. Step 2: Convert to fraction form
    962.91/1,441.67 = 522.58/x
  3. Step 3: Cross multiply
    962.91x = 1,441.67 × 522.58
  4. Step 4: Simplify right side
    962.91x = 753,387.91
  5. Step 5: Solve for x
    x = 753,387.91/962.91
  6. Step 6: Final answer
    x = 782.41

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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.