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Finding the Fourth Proportional to 603,919.60, 833,317.74 and 331,999

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Solution

The fourth proportional to 603,919.60, 833,317.74 and 331,999 is: 458,108.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,919.60 : 833,317.74 = 331,999 : x
  2. Step 2: Convert to fraction form
    603,919.60/833,317.74 = 331,999/x
  3. Step 3: Cross multiply
    603,919.60x = 833,317.74 × 331,999
  4. Step 4: Simplify right side
    603,919.60x = 276,660,656,362.26
  5. Step 5: Solve for x
    x = 276,660,656,362.26/603,919.60
  6. Step 6: Final answer
    x = 458,108.42

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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.