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Finding the Fourth Proportional to 298,323.40, 447,729.90 and 295,990.60

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Solution

The fourth proportional to 298,323.40, 447,729.90 and 295,990.60 is: 444,228.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,323.40 : 447,729.90 = 295,990.60 : x
  2. Step 2: Convert to fraction form
    298,323.40/447,729.90 = 295,990.60/x
  3. Step 3: Cross multiply
    298,323.40x = 447,729.90 × 295,990.60
  4. Step 4: Simplify right side
    298,323.40x = 132,523,841,738.94
  5. Step 5: Solve for x
    x = 132,523,841,738.94/298,323.40
  6. Step 6: Final answer
    x = 444,228.79

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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.