Home / 919,453.87-1,268,736.09-511,452.61

Finding the Fourth Proportional to 919,453.87, 1,268,736.09 and 511,452.61

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Solution

The fourth proportional to 919,453.87, 1,268,736.09 and 511,452.61 is: 705,743.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,453.87 : 1,268,736.09 = 511,452.61 : x
  2. Step 2: Convert to fraction form
    919,453.87/1,268,736.09 = 511,452.61/x
  3. Step 3: Cross multiply
    919,453.87x = 1,268,736.09 × 511,452.61
  4. Step 4: Simplify right side
    919,453.87x = 648,898,384,631.70
  5. Step 5: Solve for x
    x = 648,898,384,631.70/919,453.87
  6. Step 6: Final answer
    x = 705,743.27

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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.