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Finding the Fourth Proportional to 472,843.89, 652,765.37 and 365,172.21

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Solution

The fourth proportional to 472,843.89, 652,765.37 and 365,172.21 is: 504,123.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,843.89 : 652,765.37 = 365,172.21 : x
  2. Step 2: Convert to fraction form
    472,843.89/652,765.37 = 365,172.21/x
  3. Step 3: Cross multiply
    472,843.89x = 652,765.37 × 365,172.21
  4. Step 4: Simplify right side
    472,843.89x = 238,371,770,948.51
  5. Step 5: Solve for x
    x = 238,371,770,948.51/472,843.89
  6. Step 6: Final answer
    x = 504,123.61

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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.