Home / 458,183.64-686,999.34-205,418.37

Finding the Fourth Proportional to 458,183.64, 686,999.34 and 205,418.37

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Solution

The fourth proportional to 458,183.64, 686,999.34 and 205,418.37 is: 308,003.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,183.64 : 686,999.34 = 205,418.37 : x
  2. Step 2: Convert to fraction form
    458,183.64/686,999.34 = 205,418.37/x
  3. Step 3: Cross multiply
    458,183.64x = 686,999.34 × 205,418.37
  4. Step 4: Simplify right side
    458,183.64x = 141,122,284,613.88
  5. Step 5: Solve for x
    x = 141,122,284,613.88/458,183.64
  6. Step 6: Final answer
    x = 308,003.76

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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.