Home / 867,100.26-1,196,619.60-485,151.78

Finding the Fourth Proportional to 867,100.26, 1,196,619.60 and 485,151.78

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Solution

The fourth proportional to 867,100.26, 1,196,619.60 and 485,151.78 is: 669,521.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,100.26 : 1,196,619.60 = 485,151.78 : x
  2. Step 2: Convert to fraction form
    867,100.26/1,196,619.60 = 485,151.78/x
  3. Step 3: Cross multiply
    867,100.26x = 1,196,619.60 × 485,151.78
  4. Step 4: Simplify right side
    867,100.26x = 580,542,128,922.89
  5. Step 5: Solve for x
    x = 580,542,128,922.89/867,100.26
  6. Step 6: Final answer
    x = 669,521.34

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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.