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Finding the Fourth Proportional to 217,464.40, 326,196.60 and 199,093.60

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Solution

The fourth proportional to 217,464.40, 326,196.60 and 199,093.60 is: 298,640.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,464.40 : 326,196.60 = 199,093.60 : x
  2. Step 2: Convert to fraction form
    217,464.40/326,196.60 = 199,093.60/x
  3. Step 3: Cross multiply
    217,464.40x = 326,196.60 × 199,093.60
  4. Step 4: Simplify right side
    217,464.40x = 64,943,655,401.76
  5. Step 5: Solve for x
    x = 64,943,655,401.76/217,464.40
  6. Step 6: Final answer
    x = 298,640.40

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1.5x scale

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.