Home / 396,895.92-547,714.16-215,606.36

Finding the Fourth Proportional to 396,895.92, 547,714.16 and 215,606.36

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Solution

The fourth proportional to 396,895.92, 547,714.16 and 215,606.36 is: 297,535.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,895.92 : 547,714.16 = 215,606.36 : x
  2. Step 2: Convert to fraction form
    396,895.92/547,714.16 = 215,606.36/x
  3. Step 3: Cross multiply
    396,895.92x = 547,714.16 × 215,606.36
  4. Step 4: Simplify right side
    396,895.92x = 118,090,656,358.06
  5. Step 5: Solve for x
    x = 118,090,656,358.06/396,895.92
  6. Step 6: Final answer
    x = 297,535.58

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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.