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Finding the Fourth Proportional to 441,262.05, 661,893.47 and 308,401.80

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Solution

The fourth proportional to 441,262.05, 661,893.47 and 308,401.80 is: 462,602.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,262.05 : 661,893.47 = 308,401.80 : x
  2. Step 2: Convert to fraction form
    441,262.05/661,893.47 = 308,401.80/x
  3. Step 3: Cross multiply
    441,262.05x = 661,893.47 × 308,401.80
  4. Step 4: Simplify right side
    441,262.05x = 204,129,137,556.25
  5. Step 5: Solve for x
    x = 204,129,137,556.25/441,262.05
  6. Step 6: Final answer
    x = 462,602.98

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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.