Home / 1,970,770.20-2,956,242.78-772,585.80

Finding the Fourth Proportional to 1,970,770.20, 2,956,242.78 and 772,585.80

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Solution

The fourth proportional to 1,970,770.20, 2,956,242.78 and 772,585.80 is: 1,158,912.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970,770.20 : 2,956,242.78 = 772,585.80 : x
  2. Step 2: Convert to fraction form
    1,970,770.20/2,956,242.78 = 772,585.80/x
  3. Step 3: Cross multiply
    1,970,770.20x = 2,956,242.78 × 772,585.80
  4. Step 4: Simplify right side
    1,970,770.20x = 2,283,951,193,180.52
  5. Step 5: Solve for x
    x = 2,283,951,193,180.52/1,970,770.20
  6. Step 6: Final answer
    x = 1,158,912.99

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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.