Home / 621,119.52-931,876.20-221,751.76

Finding the Fourth Proportional to 621,119.52, 931,876.20 and 221,751.76

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Solution

The fourth proportional to 621,119.52, 931,876.20 and 221,751.76 is: 332,697.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,119.52 : 931,876.20 = 221,751.76 : x
  2. Step 2: Convert to fraction form
    621,119.52/931,876.20 = 221,751.76/x
  3. Step 3: Cross multiply
    621,119.52x = 931,876.20 × 221,751.76
  4. Step 4: Simplify right side
    621,119.52x = 206,645,187,452.11
  5. Step 5: Solve for x
    x = 206,645,187,452.11/621,119.52
  6. Step 6: Final answer
    x = 332,697.94

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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.