Home / 681,236.20-1,023,020.70-445,623.40

Finding the Fourth Proportional to 681,236.20, 1,023,020.70 and 445,623.40

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Solution

The fourth proportional to 681,236.20, 1,023,020.70 and 445,623.40 is: 669,198.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,236.20 : 1,023,020.70 = 445,623.40 : x
  2. Step 2: Convert to fraction form
    681,236.20/1,023,020.70 = 445,623.40/x
  3. Step 3: Cross multiply
    681,236.20x = 1,023,020.70 × 445,623.40
  4. Step 4: Simplify right side
    681,236.20x = 455,881,962,604.38
  5. Step 5: Solve for x
    x = 455,881,962,604.38/681,236.20
  6. Step 6: Final answer
    x = 669,198.09

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1.5x scale

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.