Home / 685,393.70-1,028,059.49-179,942.76

Finding the Fourth Proportional to 685,393.70, 1,028,059.49 and 179,942.76

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Solution

The fourth proportional to 685,393.70, 1,028,059.49 and 179,942.76 is: 269,905.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,393.70 : 1,028,059.49 = 179,942.76 : x
  2. Step 2: Convert to fraction form
    685,393.70/1,028,059.49 = 179,942.76/x
  3. Step 3: Cross multiply
    685,393.70x = 1,028,059.49 × 179,942.76
  4. Step 4: Simplify right side
    685,393.70x = 184,991,862,524.65
  5. Step 5: Solve for x
    x = 184,991,862,524.65/685,393.70
  6. Step 6: Final answer
    x = 269,905.99

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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.