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Finding the Fourth Proportional to 348,830.60, 523,245.90 and 331,334.60

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Solution

The fourth proportional to 348,830.60, 523,245.90 and 331,334.60 is: 497,001.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,830.60 : 523,245.90 = 331,334.60 : x
  2. Step 2: Convert to fraction form
    348,830.60/523,245.90 = 331,334.60/x
  3. Step 3: Cross multiply
    348,830.60x = 523,245.90 × 331,334.60
  4. Step 4: Simplify right side
    348,830.60x = 173,369,470,978.14
  5. Step 5: Solve for x
    x = 173,369,470,978.14/348,830.60
  6. Step 6: Final answer
    x = 497,001.90

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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.