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Finding the Fourth Proportional to 338,611.96, 508,550.10 and 298,099.90

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Solution

The fourth proportional to 338,611.96, 508,550.10 and 298,099.90 is: 447,706.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,611.96 : 508,550.10 = 298,099.90 : x
  2. Step 2: Convert to fraction form
    338,611.96/508,550.10 = 298,099.90/x
  3. Step 3: Cross multiply
    338,611.96x = 508,550.10 × 298,099.90
  4. Step 4: Simplify right side
    338,611.96x = 151,598,733,954.99
  5. Step 5: Solve for x
    x = 151,598,733,954.99/338,611.96
  6. Step 6: Final answer
    x = 447,706.38

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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.