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Finding the Fourth Proportional to 396,684, 547,453.08 and 245,810.16

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Solution

The fourth proportional to 396,684, 547,453.08 and 245,810.16 is: 339,236.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,684 : 547,453.08 = 245,810.16 : x
  2. Step 2: Convert to fraction form
    396,684/547,453.08 = 245,810.16/x
  3. Step 3: Cross multiply
    396,684x = 547,453.08 × 245,810.16
  4. Step 4: Simplify right side
    396,684x = 134,569,529,187.29
  5. Step 5: Solve for x
    x = 134,569,529,187.29/396,684
  6. Step 6: Final answer
    x = 339,236.09

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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.