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Finding the Fourth Proportional to 422,885.70, 583,017.62 and 335,959.18

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Solution

The fourth proportional to 422,885.70, 583,017.62 and 335,959.18 is: 463,175.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,885.70 : 583,017.62 = 335,959.18 : x
  2. Step 2: Convert to fraction form
    422,885.70/583,017.62 = 335,959.18/x
  3. Step 3: Cross multiply
    422,885.70x = 583,017.62 × 335,959.18
  4. Step 4: Simplify right side
    422,885.70x = 195,870,121,540.75
  5. Step 5: Solve for x
    x = 195,870,121,540.75/422,885.70
  6. Step 6: Final answer
    x = 463,175.09

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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.