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Finding the Fourth Proportional to 934, 1,401.36 and 356.92

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Solution

The fourth proportional to 934, 1,401.36 and 356.92 is: 535.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    934 : 1,401.36 = 356.92 : x
  2. Step 2: Convert to fraction form
    934/1,401.36 = 356.92/x
  3. Step 3: Cross multiply
    934x = 1,401.36 × 356.92
  4. Step 4: Simplify right side
    934x = 500,173.41
  5. Step 5: Solve for x
    x = 500,173.41/934
  6. Step 6: Final answer
    x = 535.52

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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.