Home / 414,239.72-571,843.32-312,306.44

Finding the Fourth Proportional to 414,239.72, 571,843.32 and 312,306.44

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Solution

The fourth proportional to 414,239.72, 571,843.32 and 312,306.44 is: 431,128.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,239.72 : 571,843.32 = 312,306.44 : x
  2. Step 2: Convert to fraction form
    414,239.72/571,843.32 = 312,306.44/x
  3. Step 3: Cross multiply
    414,239.72x = 571,843.32 × 312,306.44
  4. Step 4: Simplify right side
    414,239.72x = 178,590,351,506.98
  5. Step 5: Solve for x
    x = 178,590,351,506.98/414,239.72
  6. Step 6: Final answer
    x = 431,128.02

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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.