Home / 386,669.13-579,997.31-158,918.59

Finding the Fourth Proportional to 386,669.13, 579,997.31 and 158,918.59

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Solution

The fourth proportional to 386,669.13, 579,997.31 and 158,918.59 is: 238,375.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,669.13 : 579,997.31 = 158,918.59 : x
  2. Step 2: Convert to fraction form
    386,669.13/579,997.31 = 158,918.59/x
  3. Step 3: Cross multiply
    386,669.13x = 579,997.31 × 158,918.59
  4. Step 4: Simplify right side
    386,669.13x = 92,172,354,639.40
  5. Step 5: Solve for x
    x = 92,172,354,639.40/386,669.13
  6. Step 6: Final answer
    x = 238,375.26

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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.