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Finding the Fourth Proportional to 548,765.82, 757,148.22 and 376,736.40

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Solution

The fourth proportional to 548,765.82, 757,148.22 and 376,736.40 is: 519,794.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,765.82 : 757,148.22 = 376,736.40 : x
  2. Step 2: Convert to fraction form
    548,765.82/757,148.22 = 376,736.40/x
  3. Step 3: Cross multiply
    548,765.82x = 757,148.22 × 376,736.40
  4. Step 4: Simplify right side
    548,765.82x = 285,245,294,669.21
  5. Step 5: Solve for x
    x = 285,245,294,669.21/548,765.82
  6. Step 6: Final answer
    x = 519,794.21

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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.