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Finding the Fourth Proportional to 423.26, 584 and 246.20

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Solution

The fourth proportional to 423.26, 584 and 246.20 is: 339.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    423.26 : 584 = 246.20 : x
  2. Step 2: Convert to fraction form
    423.26/584 = 246.20/x
  3. Step 3: Cross multiply
    423.26x = 584 × 246.20
  4. Step 4: Simplify right side
    423.26x = 143,780.80
  5. Step 5: Solve for x
    x = 143,780.80/423.26
  6. Step 6: Final answer
    x = 339.70

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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.