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Finding the Fourth Proportional to 451,226.92, 622,671.78 and 270,038.54

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Solution

The fourth proportional to 451,226.92, 622,671.78 and 270,038.54 is: 372,640.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,226.92 : 622,671.78 = 270,038.54 : x
  2. Step 2: Convert to fraction form
    451,226.92/622,671.78 = 270,038.54/x
  3. Step 3: Cross multiply
    451,226.92x = 622,671.78 × 270,038.54
  4. Step 4: Simplify right side
    451,226.92x = 168,145,378,370.40
  5. Step 5: Solve for x
    x = 168,145,378,370.40/451,226.92
  6. Step 6: Final answer
    x = 372,640.40

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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.