Home / 396,376.74-547,097.09-243,451.58

Finding the Fourth Proportional to 396,376.74, 547,097.09 and 243,451.58

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Solution

The fourth proportional to 396,376.74, 547,097.09 and 243,451.58 is: 336,022.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,376.74 : 547,097.09 = 243,451.58 : x
  2. Step 2: Convert to fraction form
    396,376.74/547,097.09 = 243,451.58/x
  3. Step 3: Cross multiply
    396,376.74x = 547,097.09 × 243,451.58
  4. Step 4: Simplify right side
    396,376.74x = 133,191,647,021.16
  5. Step 5: Solve for x
    x = 133,191,647,021.16/396,376.74
  6. Step 6: Final answer
    x = 336,022.86

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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.