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Finding the Fourth Proportional to 396,555.51, 547,255.14 and 224,473.70

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Solution

The fourth proportional to 396,555.51, 547,255.14 and 224,473.70 is: 309,778.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,555.51 : 547,255.14 = 224,473.70 : x
  2. Step 2: Convert to fraction form
    396,555.51/547,255.14 = 224,473.70/x
  3. Step 3: Cross multiply
    396,555.51x = 547,255.14 × 224,473.70
  4. Step 4: Simplify right side
    396,555.51x = 122,844,383,567.87
  5. Step 5: Solve for x
    x = 122,844,383,567.87/396,555.51
  6. Step 6: Final answer
    x = 309,778.53

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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.