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Finding the Fourth Proportional to 1,934.91, 2,902.42 and 474.06

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Solution

The fourth proportional to 1,934.91, 2,902.42 and 474.06 is: 711.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934.91 : 2,902.42 = 474.06 : x
  2. Step 2: Convert to fraction form
    1,934.91/2,902.42 = 474.06/x
  3. Step 3: Cross multiply
    1,934.91x = 2,902.42 × 474.06
  4. Step 4: Simplify right side
    1,934.91x = 1,375,934.04
  5. Step 5: Solve for x
    x = 1,375,934.04/1,934.91
  6. Step 6: Final answer
    x = 711.11

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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.