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Finding the Fourth Proportional to 451,096.78, 622,513.54 and 247,155.44

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Solution

The fourth proportional to 451,096.78, 622,513.54 and 247,155.44 is: 341,074.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,096.78 : 622,513.54 = 247,155.44 : x
  2. Step 2: Convert to fraction form
    451,096.78/622,513.54 = 247,155.44/x
  3. Step 3: Cross multiply
    451,096.78x = 622,513.54 × 247,155.44
  4. Step 4: Simplify right side
    451,096.78x = 153,857,606,328.37
  5. Step 5: Solve for x
    x = 153,857,606,328.37/451,096.78
  6. Step 6: Final answer
    x = 341,074.49

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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.