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Finding the Fourth Proportional to 451,439.52, 622,973.03 and 247,483.47

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Solution

The fourth proportional to 451,439.52, 622,973.03 and 247,483.47 is: 341,519.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,439.52 : 622,973.03 = 247,483.47 : x
  2. Step 2: Convert to fraction form
    451,439.52/622,973.03 = 247,483.47/x
  3. Step 3: Cross multiply
    451,439.52x = 622,973.03 × 247,483.47
  4. Step 4: Simplify right side
    451,439.52x = 154,175,526,242.09
  5. Step 5: Solve for x
    x = 154,175,526,242.09/451,439.52
  6. Step 6: Final answer
    x = 341,519.78

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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.