Home / 484,072.22-667,319.36-320,454.56

Finding the Fourth Proportional to 484,072.22, 667,319.36 and 320,454.56

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Solution

The fourth proportional to 484,072.22, 667,319.36 and 320,454.56 is: 441,763.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,072.22 : 667,319.36 = 320,454.56 : x
  2. Step 2: Convert to fraction form
    484,072.22/667,319.36 = 320,454.56/x
  3. Step 3: Cross multiply
    484,072.22x = 667,319.36 × 320,454.56
  4. Step 4: Simplify right side
    484,072.22x = 213,845,531,888.28
  5. Step 5: Solve for x
    x = 213,845,531,888.28/484,072.22
  6. Step 6: Final answer
    x = 441,763.69

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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.