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Finding the Fourth Proportional to 603,905.78, 833,408.62 and 331,994.46

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Solution

The fourth proportional to 603,905.78, 833,408.62 and 331,994.46 is: 458,162.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,905.78 : 833,408.62 = 331,994.46 : x
  2. Step 2: Convert to fraction form
    603,905.78/833,408.62 = 331,994.46/x
  3. Step 3: Cross multiply
    603,905.78x = 833,408.62 × 331,994.46
  4. Step 4: Simplify right side
    603,905.78x = 276,687,044,756.25
  5. Step 5: Solve for x
    x = 276,687,044,756.25/603,905.78
  6. Step 6: Final answer
    x = 458,162.60

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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.