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Finding the Fourth Proportional to 548,691.42, 757,048.14 and 376,662

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Solution

The fourth proportional to 548,691.42, 757,048.14 and 376,662 is: 519,693.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,691.42 : 757,048.14 = 376,662 : x
  2. Step 2: Convert to fraction form
    548,691.42/757,048.14 = 376,662/x
  3. Step 3: Cross multiply
    548,691.42x = 757,048.14 × 376,662
  4. Step 4: Simplify right side
    548,691.42x = 285,151,266,508.68
  5. Step 5: Solve for x
    x = 285,151,266,508.68/548,691.42
  6. Step 6: Final answer
    x = 519,693.32

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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.