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Finding the Fourth Proportional to 443,634.22, 665,167.61 and 263,671.63

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Solution

The fourth proportional to 443,634.22, 665,167.61 and 263,671.63 is: 395,338.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,634.22 : 665,167.61 = 263,671.63 : x
  2. Step 2: Convert to fraction form
    443,634.22/665,167.61 = 263,671.63/x
  3. Step 3: Cross multiply
    443,634.22x = 665,167.61 × 263,671.63
  4. Step 4: Simplify right side
    443,634.22x = 175,385,827,706.58
  5. Step 5: Solve for x
    x = 175,385,827,706.58/443,634.22
  6. Step 6: Final answer
    x = 395,338.82

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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.