Home / 389,352.11-537,305.85-219,586.23

Finding the Fourth Proportional to 389,352.11, 537,305.85 and 219,586.23

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Solution

The fourth proportional to 389,352.11, 537,305.85 and 219,586.23 is: 303,028.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,352.11 : 537,305.85 = 219,586.23 : x
  2. Step 2: Convert to fraction form
    389,352.11/537,305.85 = 219,586.23/x
  3. Step 3: Cross multiply
    389,352.11x = 537,305.85 × 219,586.23
  4. Step 4: Simplify right side
    389,352.11x = 117,984,965,958.45
  5. Step 5: Solve for x
    x = 117,984,965,958.45/389,352.11
  6. Step 6: Final answer
    x = 303,028.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.