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Finding the Fourth Proportional to 471,002.40, 705,466.80 and 329,997.60

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Solution

The fourth proportional to 471,002.40, 705,466.80 and 329,997.60 is: 494,269.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,002.40 : 705,466.80 = 329,997.60 : x
  2. Step 2: Convert to fraction form
    471,002.40/705,466.80 = 329,997.60/x
  3. Step 3: Cross multiply
    471,002.40x = 705,466.80 × 329,997.60
  4. Step 4: Simplify right side
    471,002.40x = 232,802,350,879.68
  5. Step 5: Solve for x
    x = 232,802,350,879.68/471,002.40
  6. Step 6: Final answer
    x = 494,269.99

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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.