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Finding the Fourth Proportional to 530.88, 796.32 and 492

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Solution

The fourth proportional to 530.88, 796.32 and 492 is: 738

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.88 : 796.32 = 492 : x
  2. Step 2: Convert to fraction form
    530.88/796.32 = 492/x
  3. Step 3: Cross multiply
    530.88x = 796.32 × 492
  4. Step 4: Simplify right side
    530.88x = 391,789.44
  5. Step 5: Solve for x
    x = 391,789.44/530.88
  6. Step 6: Final answer
    x = 738

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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.