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Finding the Fourth Proportional to 451,306.77, 675,884.07 and 261,365.82

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Solution

The fourth proportional to 451,306.77, 675,884.07 and 261,365.82 is: 391,425.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,306.77 : 675,884.07 = 261,365.82 : x
  2. Step 2: Convert to fraction form
    451,306.77/675,884.07 = 261,365.82/x
  3. Step 3: Cross multiply
    451,306.77x = 675,884.07 × 261,365.82
  4. Step 4: Simplify right side
    451,306.77x = 176,652,994,180.49
  5. Step 5: Solve for x
    x = 176,652,994,180.49/451,306.77
  6. Step 6: Final answer
    x = 391,425.54

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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.