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Finding the Fourth Proportional to 397,813.11, 548,937.12 and 234,458.97

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Solution

The fourth proportional to 397,813.11, 548,937.12 and 234,458.97 is: 323,526.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,813.11 : 548,937.12 = 234,458.97 : x
  2. Step 2: Convert to fraction form
    397,813.11/548,937.12 = 234,458.97/x
  3. Step 3: Cross multiply
    397,813.11x = 548,937.12 × 234,458.97
  4. Step 4: Simplify right side
    397,813.11x = 128,703,231,749.97
  5. Step 5: Solve for x
    x = 128,703,231,749.97/397,813.11
  6. Step 6: Final answer
    x = 323,526.87

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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.