Home / 424,015.10-635,627.37-143,336.06

Finding the Fourth Proportional to 424,015.10, 635,627.37 and 143,336.06

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Solution

The fourth proportional to 424,015.10, 635,627.37 and 143,336.06 is: 214,870.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,015.10 : 635,627.37 = 143,336.06 : x
  2. Step 2: Convert to fraction form
    424,015.10/635,627.37 = 143,336.06/x
  3. Step 3: Cross multiply
    424,015.10x = 635,627.37 × 143,336.06
  4. Step 4: Simplify right side
    424,015.10x = 91,108,322,843.96
  5. Step 5: Solve for x
    x = 91,108,322,843.96/424,015.10
  6. Step 6: Final answer
    x = 214,870.47

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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.