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Finding the Fourth Proportional to 422,888.11, 583,020.99 and 335,961.61

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Solution

The fourth proportional to 422,888.11, 583,020.99 and 335,961.61 is: 463,178.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,888.11 : 583,020.99 = 335,961.61 : x
  2. Step 2: Convert to fraction form
    422,888.11/583,020.99 = 335,961.61/x
  3. Step 3: Cross multiply
    422,888.11x = 583,020.99 × 335,961.61
  4. Step 4: Simplify right side
    422,888.11x = 195,872,669,006.64
  5. Step 5: Solve for x
    x = 195,872,669,006.64/422,888.11
  6. Step 6: Final answer
    x = 463,178.48

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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.