Home / 919,804.92-1,268,244.78-629,556.30

Finding the Fourth Proportional to 919,804.92, 1,268,244.78 and 629,556.30

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Solution

The fourth proportional to 919,804.92, 1,268,244.78 and 629,556.30 is: 868,044.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,804.92 : 1,268,244.78 = 629,556.30 : x
  2. Step 2: Convert to fraction form
    919,804.92/1,268,244.78 = 629,556.30/x
  3. Step 3: Cross multiply
    919,804.92x = 1,268,244.78 × 629,556.30
  4. Step 4: Simplify right side
    919,804.92x = 798,431,491,191.11
  5. Step 5: Solve for x
    x = 798,431,491,191.11/919,804.92
  6. Step 6: Final answer
    x = 868,044.38

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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.