Home / 481,051.31-721,460.33-200,415.47

Finding the Fourth Proportional to 481,051.31, 721,460.33 and 200,415.47

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Solution

The fourth proportional to 481,051.31, 721,460.33 and 200,415.47 is: 300,574.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,051.31 : 721,460.33 = 200,415.47 : x
  2. Step 2: Convert to fraction form
    481,051.31/721,460.33 = 200,415.47/x
  3. Step 3: Cross multiply
    481,051.31x = 721,460.33 × 200,415.47
  4. Step 4: Simplify right side
    481,051.31x = 144,591,810,121.23
  5. Step 5: Solve for x
    x = 144,591,810,121.23/481,051.31
  6. Step 6: Final answer
    x = 300,574.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.