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Finding the Fourth Proportional to 793.96, 1,095.88 and 483.72

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Solution

The fourth proportional to 793.96, 1,095.88 and 483.72 is: 667.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.96 : 1,095.88 = 483.72 : x
  2. Step 2: Convert to fraction form
    793.96/1,095.88 = 483.72/x
  3. Step 3: Cross multiply
    793.96x = 1,095.88 × 483.72
  4. Step 4: Simplify right side
    793.96x = 530,099.07
  5. Step 5: Solve for x
    x = 530,099.07/793.96
  6. Step 6: Final answer
    x = 667.66

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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.