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Finding the Fourth Proportional to 611,820.44, 844,076.42 and 451,057.72

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Solution

The fourth proportional to 611,820.44, 844,076.42 and 451,057.72 is: 622,285.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,820.44 : 844,076.42 = 451,057.72 : x
  2. Step 2: Convert to fraction form
    611,820.44/844,076.42 = 451,057.72/x
  3. Step 3: Cross multiply
    611,820.44x = 844,076.42 × 451,057.72
  4. Step 4: Simplify right side
    611,820.44x = 380,727,185,510.96
  5. Step 5: Solve for x
    x = 380,727,185,510.96/611,820.44
  6. Step 6: Final answer
    x = 622,285.82

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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.