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Finding the Fourth Proportional to 591.15, 882.46 and 518.25

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Solution

The fourth proportional to 591.15, 882.46 and 518.25 is: 773.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.15 : 882.46 = 518.25 : x
  2. Step 2: Convert to fraction form
    591.15/882.46 = 518.25/x
  3. Step 3: Cross multiply
    591.15x = 882.46 × 518.25
  4. Step 4: Simplify right side
    591.15x = 457,332.30
  5. Step 5: Solve for x
    x = 457,332.30/591.15
  6. Step 6: Final answer
    x = 773.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.