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Finding the Fourth Proportional to 541, 811.50 and 517.92

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Solution

The fourth proportional to 541, 811.50 and 517.92 is: 776.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    541 : 811.50 = 517.92 : x
  2. Step 2: Convert to fraction form
    541/811.50 = 517.92/x
  3. Step 3: Cross multiply
    541x = 811.50 × 517.92
  4. Step 4: Simplify right side
    541x = 420,292.08
  5. Step 5: Solve for x
    x = 420,292.08/541
  6. Step 6: Final answer
    x = 776.88

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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.