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Finding the Fourth Proportional to 580,990.30, 801,771.05 and 322,891.46

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Solution

The fourth proportional to 580,990.30, 801,771.05 and 322,891.46 is: 445,592.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,990.30 : 801,771.05 = 322,891.46 : x
  2. Step 2: Convert to fraction form
    580,990.30/801,771.05 = 322,891.46/x
  3. Step 3: Cross multiply
    580,990.30x = 801,771.05 × 322,891.46
  4. Step 4: Simplify right side
    580,990.30x = 258,885,019,296.92
  5. Step 5: Solve for x
    x = 258,885,019,296.92/580,990.30
  6. Step 6: Final answer
    x = 445,592.67

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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.