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Finding the Fourth Proportional to 942.45, 1,411.31 and 594.73

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Solution

The fourth proportional to 942.45, 1,411.31 and 594.73 is: 890.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    942.45 : 1,411.31 = 594.73 : x
  2. Step 2: Convert to fraction form
    942.45/1,411.31 = 594.73/x
  3. Step 3: Cross multiply
    942.45x = 1,411.31 × 594.73
  4. Step 4: Simplify right side
    942.45x = 839,351.65
  5. Step 5: Solve for x
    x = 839,351.65/942.45
  6. Step 6: Final answer
    x = 890.61

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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.