Home / 919,042.72-1,268,195.28-531,791.20

Finding the Fourth Proportional to 919,042.72, 1,268,195.28 and 531,791.20

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Solution

The fourth proportional to 919,042.72, 1,268,195.28 and 531,791.20 is: 733,823.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,042.72 : 1,268,195.28 = 531,791.20 : x
  2. Step 2: Convert to fraction form
    919,042.72/1,268,195.28 = 531,791.20/x
  3. Step 3: Cross multiply
    919,042.72x = 1,268,195.28 × 531,791.20
  4. Step 4: Simplify right side
    919,042.72x = 674,415,089,785.54
  5. Step 5: Solve for x
    x = 674,415,089,785.54/919,042.72
  6. Step 6: Final answer
    x = 733,823.44

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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.