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Finding the Fourth Proportional to 436,828.26, 603,009 and 293,671.34

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Solution

The fourth proportional to 436,828.26, 603,009 and 293,671.34 is: 405,391.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,828.26 : 603,009 = 293,671.34 : x
  2. Step 2: Convert to fraction form
    436,828.26/603,009 = 293,671.34/x
  3. Step 3: Cross multiply
    436,828.26x = 603,009 × 293,671.34
  4. Step 4: Simplify right side
    436,828.26x = 177,086,458,047.02
  5. Step 5: Solve for x
    x = 177,086,458,047.02/436,828.26
  6. Step 6: Final answer
    x = 405,391.49

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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.