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Finding the Fourth Proportional to 451,010.45, 622,386.54 and 247,065.41

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Solution

The fourth proportional to 451,010.45, 622,386.54 and 247,065.41 is: 340,945.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,010.45 : 622,386.54 = 247,065.41 : x
  2. Step 2: Convert to fraction form
    451,010.45/622,386.54 = 247,065.41/x
  3. Step 3: Cross multiply
    451,010.45x = 622,386.54 × 247,065.41
  4. Step 4: Simplify right side
    451,010.45x = 153,770,187,239.55
  5. Step 5: Solve for x
    x = 153,770,187,239.55/451,010.45
  6. Step 6: Final answer
    x = 340,945.95

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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.