Home / 441,932.20-663,128.70-192,639.40

Finding the Fourth Proportional to 441,932.20, 663,128.70 and 192,639.40

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Solution

The fourth proportional to 441,932.20, 663,128.70 and 192,639.40 is: 289,059.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,932.20 : 663,128.70 = 192,639.40 : x
  2. Step 2: Convert to fraction form
    441,932.20/663,128.70 = 192,639.40/x
  3. Step 3: Cross multiply
    441,932.20x = 663,128.70 × 192,639.40
  4. Step 4: Simplify right side
    441,932.20x = 127,744,714,890.78
  5. Step 5: Solve for x
    x = 127,744,714,890.78/441,932.20
  6. Step 6: Final answer
    x = 289,059.53

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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.