Home / 825,912,287.92-1,139,782,451.74-449,593,144.19

Finding the Fourth Proportional to 825,912,287.92, 1,139,782,451.74 and 449,593,144.19

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Solution

The fourth proportional to 825,912,287.92, 1,139,782,451.74 and 449,593,144.19 is: 620,451,328.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,912,287.92 : 1,139,782,451.74 = 449,593,144.19 : x
  2. Step 2: Convert to fraction form
    825,912,287.92/1,139,782,451.74 = 449,593,144.19/x
  3. Step 3: Cross multiply
    825,912,287.92x = 1,139,782,451.74 × 449,593,144.19
  4. Step 4: Simplify right side
    825,912,287.92x = 512,438,376,176,736,704
  5. Step 5: Solve for x
    x = 512,438,376,176,736,704/825,912,287.92
  6. Step 6: Final answer
    x = 620,451,328.39

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Double scale
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1.5x scale

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.