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Finding the Fourth Proportional to 447,717.20, 670,992.60 and 181,259.60

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Solution

The fourth proportional to 447,717.20, 670,992.60 and 181,259.60 is: 271,653.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,717.20 : 670,992.60 = 181,259.60 : x
  2. Step 2: Convert to fraction form
    447,717.20/670,992.60 = 181,259.60/x
  3. Step 3: Cross multiply
    447,717.20x = 670,992.60 × 181,259.60
  4. Step 4: Simplify right side
    447,717.20x = 121,623,850,278.96
  5. Step 5: Solve for x
    x = 121,623,850,278.96/447,717.20
  6. Step 6: Final answer
    x = 271,653.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.