Home / 484,073.22-667,320.74-320,455.56

Finding the Fourth Proportional to 484,073.22, 667,320.74 and 320,455.56

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Solution

The fourth proportional to 484,073.22, 667,320.74 and 320,455.56 is: 441,765.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,073.22 : 667,320.74 = 320,455.56 : x
  2. Step 2: Convert to fraction form
    484,073.22/667,320.74 = 320,455.56/x
  3. Step 3: Cross multiply
    484,073.22x = 667,320.74 × 320,455.56
  4. Step 4: Simplify right side
    484,073.22x = 213,846,641,436.31
  5. Step 5: Solve for x
    x = 213,846,641,436.31/484,073.22
  6. Step 6: Final answer
    x = 441,765.07

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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.