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Finding the Fourth Proportional to 411,171.72, 567,487.11 and 239,189.49

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Solution

The fourth proportional to 411,171.72, 567,487.11 and 239,189.49 is: 330,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,171.72 : 567,487.11 = 239,189.49 : x
  2. Step 2: Convert to fraction form
    411,171.72/567,487.11 = 239,189.49/x
  3. Step 3: Cross multiply
    411,171.72x = 567,487.11 × 239,189.49
  4. Step 4: Simplify right side
    411,171.72x = 135,736,952,422.47
  5. Step 5: Solve for x
    x = 135,736,952,422.47/411,171.72
  6. Step 6: Final answer
    x = 330,122.30

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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.