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Finding the Fourth Proportional to 355.92, 533 and 348.72

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Solution

The fourth proportional to 355.92, 533 and 348.72 is: 522.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.92 : 533 = 348.72 : x
  2. Step 2: Convert to fraction form
    355.92/533 = 348.72/x
  3. Step 3: Cross multiply
    355.92x = 533 × 348.72
  4. Step 4: Simplify right side
    355.92x = 185,867.76
  5. Step 5: Solve for x
    x = 185,867.76/355.92
  6. Step 6: Final answer
    x = 522.22

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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.