Home / 414,238.72-571,841.94-312,305.44

Finding the Fourth Proportional to 414,238.72, 571,841.94 and 312,305.44

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Solution

The fourth proportional to 414,238.72, 571,841.94 and 312,305.44 is: 431,126.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,238.72 : 571,841.94 = 312,305.44 : x
  2. Step 2: Convert to fraction form
    414,238.72/571,841.94 = 312,305.44/x
  3. Step 3: Cross multiply
    414,238.72x = 571,841.94 × 312,305.44
  4. Step 4: Simplify right side
    414,238.72x = 178,589,348,682.15
  5. Step 5: Solve for x
    x = 178,589,348,682.15/414,238.72
  6. Step 6: Final answer
    x = 431,126.64

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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.