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Finding the Fourth Proportional to 793.76, 1,095.52 and 483.24

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Solution

The fourth proportional to 793.76, 1,095.52 and 483.24 is: 666.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.76 : 1,095.52 = 483.24 : x
  2. Step 2: Convert to fraction form
    793.76/1,095.52 = 483.24/x
  3. Step 3: Cross multiply
    793.76x = 1,095.52 × 483.24
  4. Step 4: Simplify right side
    793.76x = 529,399.08
  5. Step 5: Solve for x
    x = 529,399.08/793.76
  6. Step 6: Final answer
    x = 666.95

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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.