Home / 396,837.69-547,640.12-215,553.14

Finding the Fourth Proportional to 396,837.69, 547,640.12 and 215,553.14

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Solution

The fourth proportional to 396,837.69, 547,640.12 and 215,553.14 is: 297,465.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,837.69 : 547,640.12 = 215,553.14 : x
  2. Step 2: Convert to fraction form
    396,837.69/547,640.12 = 215,553.14/x
  3. Step 3: Cross multiply
    396,837.69x = 547,640.12 × 215,553.14
  4. Step 4: Simplify right side
    396,837.69x = 118,045,547,455.98
  5. Step 5: Solve for x
    x = 118,045,547,455.98/396,837.69
  6. Step 6: Final answer
    x = 297,465.56

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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.