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Finding the Fourth Proportional to 483.72, 724.92 and 375

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Solution

The fourth proportional to 483.72, 724.92 and 375 is: 561.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.72 : 724.92 = 375 : x
  2. Step 2: Convert to fraction form
    483.72/724.92 = 375/x
  3. Step 3: Cross multiply
    483.72x = 724.92 × 375
  4. Step 4: Simplify right side
    483.72x = 271,845
  5. Step 5: Solve for x
    x = 271,845/483.72
  6. Step 6: Final answer
    x = 561.99

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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.