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Finding the Fourth Proportional to 603,709.96, 904,070.22 and 443,405.75

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Solution

The fourth proportional to 603,709.96, 904,070.22 and 443,405.75 is: 664,010.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,709.96 : 904,070.22 = 443,405.75 : x
  2. Step 2: Convert to fraction form
    603,709.96/904,070.22 = 443,405.75/x
  3. Step 3: Cross multiply
    603,709.96x = 904,070.22 × 443,405.75
  4. Step 4: Simplify right side
    603,709.96x = 400,869,930,886.34
  5. Step 5: Solve for x
    x = 400,869,930,886.34/603,709.96
  6. Step 6: Final answer
    x = 664,010.80

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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.