Home / 746,738.10-1,120,111.20-185,772.60

Finding the Fourth Proportional to 746,738.10, 1,120,111.20 and 185,772.60

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Solution

The fourth proportional to 746,738.10, 1,120,111.20 and 185,772.60 is: 278,659.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,738.10 : 1,120,111.20 = 185,772.60 : x
  2. Step 2: Convert to fraction form
    746,738.10/1,120,111.20 = 185,772.60/x
  3. Step 3: Cross multiply
    746,738.10x = 1,120,111.20 × 185,772.60
  4. Step 4: Simplify right side
    746,738.10x = 208,085,969,913.12
  5. Step 5: Solve for x
    x = 208,085,969,913.12/746,738.10
  6. Step 6: Final answer
    x = 278,659.91

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Double scale
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Similar ratio
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1.5x scale

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.