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Finding the Fourth Proportional to 443,634.30, 664,467.30 and 384,585.30

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Solution

The fourth proportional to 443,634.30, 664,467.30 and 384,585.30 is: 576,024.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,634.30 : 664,467.30 = 384,585.30 : x
  2. Step 2: Convert to fraction form
    443,634.30/664,467.30 = 384,585.30/x
  3. Step 3: Cross multiply
    443,634.30x = 664,467.30 × 384,585.30
  4. Step 4: Simplify right side
    443,634.30x = 255,544,355,910.69
  5. Step 5: Solve for x
    x = 255,544,355,910.69/443,634.30
  6. Step 6: Final answer
    x = 576,024.79

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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.