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Finding the Fourth Proportional to 984.96, 1,484.91 and 932.04

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Solution

The fourth proportional to 984.96, 1,484.91 and 932.04 is: 1,405.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    984.96 : 1,484.91 = 932.04 : x
  2. Step 2: Convert to fraction form
    984.96/1,484.91 = 932.04/x
  3. Step 3: Cross multiply
    984.96x = 1,484.91 × 932.04
  4. Step 4: Simplify right side
    984.96x = 1,383,995.52
  5. Step 5: Solve for x
    x = 1,383,995.52/984.96
  6. Step 6: Final answer
    x = 1,405.13

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.