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Finding the Fourth Proportional to 451,069.56, 622,468.44 and 247,118.58

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Solution

The fourth proportional to 451,069.56, 622,468.44 and 247,118.58 is: 341,019.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,069.56 : 622,468.44 = 247,118.58 : x
  2. Step 2: Convert to fraction form
    451,069.56/622,468.44 = 247,118.58/x
  3. Step 3: Cross multiply
    451,069.56x = 622,468.44 × 247,118.58
  4. Step 4: Simplify right side
    451,069.56x = 153,823,516,987.62
  5. Step 5: Solve for x
    x = 153,823,516,987.62/451,069.56
  6. Step 6: Final answer
    x = 341,019.50

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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.