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Finding the Fourth Proportional to 402,193.46, 555,033.63 and 220,922.14

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Solution

The fourth proportional to 402,193.46, 555,033.63 and 220,922.14 is: 304,876.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,193.46 : 555,033.63 = 220,922.14 : x
  2. Step 2: Convert to fraction form
    402,193.46/555,033.63 = 220,922.14/x
  3. Step 3: Cross multiply
    402,193.46x = 555,033.63 × 220,922.14
  4. Step 4: Simplify right side
    402,193.46x = 122,619,217,311.57
  5. Step 5: Solve for x
    x = 122,619,217,311.57/402,193.46
  6. Step 6: Final answer
    x = 304,876.21

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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.