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Finding the Fourth Proportional to 475,412.22, 655,690.94 and 404,028.54

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Solution

The fourth proportional to 475,412.22, 655,690.94 and 404,028.54 is: 557,238.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,412.22 : 655,690.94 = 404,028.54 : x
  2. Step 2: Convert to fraction form
    475,412.22/655,690.94 = 404,028.54/x
  3. Step 3: Cross multiply
    475,412.22x = 655,690.94 × 404,028.54
  4. Step 4: Simplify right side
    475,412.22x = 264,917,853,179.43
  5. Step 5: Solve for x
    x = 264,917,853,179.43/475,412.22
  6. Step 6: Final answer
    x = 557,238.21

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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.