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Finding the Fourth Proportional to 481,040.25, 663,905.61 and 277,051.47

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Solution

The fourth proportional to 481,040.25, 663,905.61 and 277,051.47 is: 382,371.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,040.25 : 663,905.61 = 277,051.47 : x
  2. Step 2: Convert to fraction form
    481,040.25/663,905.61 = 277,051.47/x
  3. Step 3: Cross multiply
    481,040.25x = 663,905.61 × 277,051.47
  4. Step 4: Simplify right side
    481,040.25x = 183,936,025,191.75
  5. Step 5: Solve for x
    x = 183,936,025,191.75/481,040.25
  6. Step 6: Final answer
    x = 382,371.38

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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.