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Finding the Fourth Proportional to 443,687.08, 664,893.96 and 190,899.04

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Solution

The fourth proportional to 443,687.08, 664,893.96 and 190,899.04 is: 286,074.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,687.08 : 664,893.96 = 190,899.04 : x
  2. Step 2: Convert to fraction form
    443,687.08/664,893.96 = 190,899.04/x
  3. Step 3: Cross multiply
    443,687.08x = 664,893.96 × 190,899.04
  4. Step 4: Simplify right side
    443,687.08x = 126,927,618,665.80
  5. Step 5: Solve for x
    x = 126,927,618,665.80/443,687.08
  6. Step 6: Final answer
    x = 286,074.63

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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.