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Finding the Fourth Proportional to 295,563.70, 443,345.55 and 206,917.30

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Solution

The fourth proportional to 295,563.70, 443,345.55 and 206,917.30 is: 310,375.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,563.70 : 443,345.55 = 206,917.30 : x
  2. Step 2: Convert to fraction form
    295,563.70/443,345.55 = 206,917.30/x
  3. Step 3: Cross multiply
    295,563.70x = 443,345.55 × 206,917.30
  4. Step 4: Simplify right side
    295,563.70x = 91,735,864,173.02
  5. Step 5: Solve for x
    x = 91,735,864,173.02/295,563.70
  6. Step 6: Final answer
    x = 310,375.95

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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.