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Finding the Fourth Proportional to 663,340.44, 995,021.46 and 190,023.96

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Solution

The fourth proportional to 663,340.44, 995,021.46 and 190,023.96 is: 285,039.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,340.44 : 995,021.46 = 190,023.96 : x
  2. Step 2: Convert to fraction form
    663,340.44/995,021.46 = 190,023.96/x
  3. Step 3: Cross multiply
    663,340.44x = 995,021.46 × 190,023.96
  4. Step 4: Simplify right side
    663,340.44x = 189,077,918,114.18
  5. Step 5: Solve for x
    x = 189,077,918,114.18/663,340.44
  6. Step 6: Final answer
    x = 285,039.03

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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.