Home / 721,764.56-995,967.62-431,318.50

Finding the Fourth Proportional to 721,764.56, 995,967.62 and 431,318.50

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Solution

The fourth proportional to 721,764.56, 995,967.62 and 431,318.50 is: 595,179.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,764.56 : 995,967.62 = 431,318.50 : x
  2. Step 2: Convert to fraction form
    721,764.56/995,967.62 = 431,318.50/x
  3. Step 3: Cross multiply
    721,764.56x = 995,967.62 × 431,318.50
  4. Step 4: Simplify right side
    721,764.56x = 429,579,259,906.97
  5. Step 5: Solve for x
    x = 429,579,259,906.97/721,764.56
  6. Step 6: Final answer
    x = 595,179.21

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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.