Home / 380,865.85-525,581.97-219,716.75

Finding the Fourth Proportional to 380,865.85, 525,581.97 and 219,716.75

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Solution

The fourth proportional to 380,865.85, 525,581.97 and 219,716.75 is: 303,201.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,865.85 : 525,581.97 = 219,716.75 : x
  2. Step 2: Convert to fraction form
    380,865.85/525,581.97 = 219,716.75/x
  3. Step 3: Cross multiply
    380,865.85x = 525,581.97 × 219,716.75
  4. Step 4: Simplify right side
    380,865.85x = 115,479,162,797.02
  5. Step 5: Solve for x
    x = 115,479,162,797.02/380,865.85
  6. Step 6: Final answer
    x = 303,201.67

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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.