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Finding the Fourth Proportional to 962.91, 1,444.77 and 841.41

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Solution

The fourth proportional to 962.91, 1,444.77 and 841.41 is: 1,262.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.91 : 1,444.77 = 841.41 : x
  2. Step 2: Convert to fraction form
    962.91/1,444.77 = 841.41/x
  3. Step 3: Cross multiply
    962.91x = 1,444.77 × 841.41
  4. Step 4: Simplify right side
    962.91x = 1,215,643.93
  5. Step 5: Solve for x
    x = 1,215,643.93/962.91
  6. Step 6: Final answer
    x = 1,262.47

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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.