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Finding the Fourth Proportional to 451,350.78, 622,835.34 and 247,365.66

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Solution

The fourth proportional to 451,350.78, 622,835.34 and 247,365.66 is: 341,348.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,350.78 : 622,835.34 = 247,365.66 : x
  2. Step 2: Convert to fraction form
    451,350.78/622,835.34 = 247,365.66/x
  3. Step 3: Cross multiply
    451,350.78x = 622,835.34 × 247,365.66
  4. Step 4: Simplify right side
    451,350.78x = 154,068,074,950.42
  5. Step 5: Solve for x
    x = 154,068,074,950.42/451,350.78
  6. Step 6: Final answer
    x = 341,348.86

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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.