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Finding the Fourth Proportional to 451,018.02, 622,382.54 and 247,069.82

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Solution

The fourth proportional to 451,018.02, 622,382.54 and 247,069.82 is: 340,944.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,018.02 : 622,382.54 = 247,069.82 : x
  2. Step 2: Convert to fraction form
    451,018.02/622,382.54 = 247,069.82/x
  3. Step 3: Cross multiply
    451,018.02x = 622,382.54 × 247,069.82
  4. Step 4: Simplify right side
    451,018.02x = 153,771,942,128.94
  5. Step 5: Solve for x
    x = 153,771,942,128.94/451,018.02
  6. Step 6: Final answer
    x = 340,944.12

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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.