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Finding the Fourth Proportional to 635, 952.90 and 293

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Solution

The fourth proportional to 635, 952.90 and 293 is: 439.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    635 : 952.90 = 293 : x
  2. Step 2: Convert to fraction form
    635/952.90 = 293/x
  3. Step 3: Cross multiply
    635x = 952.90 × 293
  4. Step 4: Simplify right side
    635x = 279,199.70
  5. Step 5: Solve for x
    x = 279,199.70/635
  6. Step 6: Final answer
    x = 439.68

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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.