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Finding the Fourth Proportional to 423.74, 584.75 and 237.22

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Solution

The fourth proportional to 423.74, 584.75 and 237.22 is: 327.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    423.74 : 584.75 = 237.22 : x
  2. Step 2: Convert to fraction form
    423.74/584.75 = 237.22/x
  3. Step 3: Cross multiply
    423.74x = 584.75 × 237.22
  4. Step 4: Simplify right side
    423.74x = 138,714.40
  5. Step 5: Solve for x
    x = 138,714.40/423.74
  6. Step 6: Final answer
    x = 327.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.