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Finding the Fourth Proportional to 443,326.80, 664,006.05 and 364,594.80

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Solution

The fourth proportional to 443,326.80, 664,006.05 and 364,594.80 is: 546,082.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,326.80 : 664,006.05 = 364,594.80 : x
  2. Step 2: Convert to fraction form
    443,326.80/664,006.05 = 364,594.80/x
  3. Step 3: Cross multiply
    443,326.80x = 664,006.05 × 364,594.80
  4. Step 4: Simplify right side
    443,326.80x = 242,093,152,998.54
  5. Step 5: Solve for x
    x = 242,093,152,998.54/443,326.80
  6. Step 6: Final answer
    x = 546,082.83

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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.