Home / 441,938.20-663,137.70-192,645.40

Finding the Fourth Proportional to 441,938.20, 663,137.70 and 192,645.40

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Solution

The fourth proportional to 441,938.20, 663,137.70 and 192,645.40 is: 289,068.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,938.20 : 663,137.70 = 192,645.40 : x
  2. Step 2: Convert to fraction form
    441,938.20/663,137.70 = 192,645.40/x
  3. Step 3: Cross multiply
    441,938.20x = 663,137.70 × 192,645.40
  4. Step 4: Simplify right side
    441,938.20x = 127,750,427,471.58
  5. Step 5: Solve for x
    x = 127,750,427,471.58/441,938.20
  6. Step 6: Final answer
    x = 289,068.53

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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.