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Finding the Fourth Proportional to 576.24, 793.64 and 556.24

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Solution

The fourth proportional to 576.24, 793.64 and 556.24 is: 766.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.24 : 793.64 = 556.24 : x
  2. Step 2: Convert to fraction form
    576.24/793.64 = 556.24/x
  3. Step 3: Cross multiply
    576.24x = 793.64 × 556.24
  4. Step 4: Simplify right side
    576.24x = 441,454.31
  5. Step 5: Solve for x
    x = 441,454.31/576.24
  6. Step 6: Final answer
    x = 766.09

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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.