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Finding the Fourth Proportional to 443,045.84, 664,646.64 and 190,481.36

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Solution

The fourth proportional to 443,045.84, 664,646.64 and 190,481.36 is: 285,755.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,045.84 : 664,646.64 = 190,481.36 : x
  2. Step 2: Convert to fraction form
    443,045.84/664,646.64 = 190,481.36/x
  3. Step 3: Cross multiply
    443,045.84x = 664,646.64 × 190,481.36
  4. Step 4: Simplify right side
    443,045.84x = 126,602,795,906.63
  5. Step 5: Solve for x
    x = 126,602,795,906.63/443,045.84
  6. Step 6: Final answer
    x = 285,755.52

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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.