Home / 621,224.75-931,857.78-171,908.03

Finding the Fourth Proportional to 621,224.75, 931,857.78 and 171,908.03

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Solution

The fourth proportional to 621,224.75, 931,857.78 and 171,908.03 is: 257,867.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,224.75 : 931,857.78 = 171,908.03 : x
  2. Step 2: Convert to fraction form
    621,224.75/931,857.78 = 171,908.03/x
  3. Step 3: Cross multiply
    621,224.75x = 931,857.78 × 171,908.03
  4. Step 4: Simplify right side
    621,224.75x = 160,193,835,199.97
  5. Step 5: Solve for x
    x = 160,193,835,199.97/621,224.75
  6. Step 6: Final answer
    x = 257,867.76

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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.