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Finding the Fourth Proportional to 436,970.89, 603,109.16 and 275,717.31

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Solution

The fourth proportional to 436,970.89, 603,109.16 and 275,717.31 is: 380,546.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,970.89 : 603,109.16 = 275,717.31 : x
  2. Step 2: Convert to fraction form
    436,970.89/603,109.16 = 275,717.31/x
  3. Step 3: Cross multiply
    436,970.89x = 603,109.16 × 275,717.31
  4. Step 4: Simplify right side
    436,970.89x = 166,287,635,231.56
  5. Step 5: Solve for x
    x = 166,287,635,231.56/436,970.89
  6. Step 6: Final answer
    x = 380,546.25

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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.