Home / 621,058.89-931,785.27-221,690.82

Finding the Fourth Proportional to 621,058.89, 931,785.27 and 221,690.82

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Solution

The fourth proportional to 621,058.89, 931,785.27 and 221,690.82 is: 332,606.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,058.89 : 931,785.27 = 221,690.82 : x
  2. Step 2: Convert to fraction form
    621,058.89/931,785.27 = 221,690.82/x
  3. Step 3: Cross multiply
    621,058.89x = 931,785.27 × 221,690.82
  4. Step 4: Simplify right side
    621,058.89x = 206,568,240,570.22
  5. Step 5: Solve for x
    x = 206,568,240,570.22/621,058.89
  6. Step 6: Final answer
    x = 332,606.53

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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.