Home / 389,553.45-537,584.30-219,803.37

Finding the Fourth Proportional to 389,553.45, 537,584.30 and 219,803.37

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Solution

The fourth proportional to 389,553.45, 537,584.30 and 219,803.37 is: 303,328.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,553.45 : 537,584.30 = 219,803.37 : x
  2. Step 2: Convert to fraction form
    389,553.45/537,584.30 = 219,803.37/x
  3. Step 3: Cross multiply
    389,553.45x = 537,584.30 × 219,803.37
  4. Step 4: Simplify right side
    389,553.45x = 118,162,840,799.09
  5. Step 5: Solve for x
    x = 118,162,840,799.09/389,553.45
  6. Step 6: Final answer
    x = 303,328.95

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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.