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Finding the Fourth Proportional to 351,994.40, 526,825.20 and 324,000.80

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Solution

The fourth proportional to 351,994.40, 526,825.20 and 324,000.80 is: 484,927.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,994.40 : 526,825.20 = 324,000.80 : x
  2. Step 2: Convert to fraction form
    351,994.40/526,825.20 = 324,000.80/x
  3. Step 3: Cross multiply
    351,994.40x = 526,825.20 × 324,000.80
  4. Step 4: Simplify right side
    351,994.40x = 170,691,786,260.16
  5. Step 5: Solve for x
    x = 170,691,786,260.16/351,994.40
  6. Step 6: Final answer
    x = 484,927.56

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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.