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Finding the Fourth Proportional to 398,171.93, 549,457.85 and 226,067.33

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Solution

The fourth proportional to 398,171.93, 549,457.85 and 226,067.33 is: 311,961.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,171.93 : 549,457.85 = 226,067.33 : x
  2. Step 2: Convert to fraction form
    398,171.93/549,457.85 = 226,067.33/x
  3. Step 3: Cross multiply
    398,171.93x = 549,457.85 × 226,067.33
  4. Step 4: Simplify right side
    398,171.93x = 124,214,471,035.85
  5. Step 5: Solve for x
    x = 124,214,471,035.85/398,171.93
  6. Step 6: Final answer
    x = 311,961.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.