Home / 547,764.30-821,121.57-231,786.54

Finding the Fourth Proportional to 547,764.30, 821,121.57 and 231,786.54

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Solution

The fourth proportional to 547,764.30, 821,121.57 and 231,786.54 is: 347,457.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,764.30 : 821,121.57 = 231,786.54 : x
  2. Step 2: Convert to fraction form
    547,764.30/821,121.57 = 231,786.54/x
  3. Step 3: Cross multiply
    547,764.30x = 821,121.57 × 231,786.54
  4. Step 4: Simplify right side
    547,764.30x = 190,324,927,629.67
  5. Step 5: Solve for x
    x = 190,324,927,629.67/547,764.30
  6. Step 6: Final answer
    x = 347,457.71

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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.