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Finding the Fourth Proportional to 663,452.80, 995,308.80 and 264,025.60

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Solution

The fourth proportional to 663,452.80, 995,308.80 and 264,025.60 is: 396,089.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,452.80 : 995,308.80 = 264,025.60 : x
  2. Step 2: Convert to fraction form
    663,452.80/995,308.80 = 264,025.60/x
  3. Step 3: Cross multiply
    663,452.80x = 995,308.80 × 264,025.60
  4. Step 4: Simplify right side
    663,452.80x = 262,787,003,105.28
  5. Step 5: Solve for x
    x = 262,787,003,105.28/663,452.80
  6. Step 6: Final answer
    x = 396,089.98

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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.