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Finding the Fourth Proportional to 419,691.93, 579,174.89 and 228,705.27

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Solution

The fourth proportional to 419,691.93, 579,174.89 and 228,705.27 is: 315,613.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,691.93 : 579,174.89 = 228,705.27 : x
  2. Step 2: Convert to fraction form
    419,691.93/579,174.89 = 228,705.27/x
  3. Step 3: Cross multiply
    419,691.93x = 579,174.89 × 228,705.27
  4. Step 4: Simplify right side
    419,691.93x = 132,460,348,451.14
  5. Step 5: Solve for x
    x = 132,460,348,451.14/419,691.93
  6. Step 6: Final answer
    x = 315,613.28

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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.