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Finding the Fourth Proportional to 529,999.50, 731,399.31 and 303,776.22

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Solution

The fourth proportional to 529,999.50, 731,399.31 and 303,776.22 is: 419,211.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,999.50 : 731,399.31 = 303,776.22 : x
  2. Step 2: Convert to fraction form
    529,999.50/731,399.31 = 303,776.22/x
  3. Step 3: Cross multiply
    529,999.50x = 731,399.31 × 303,776.22
  4. Step 4: Simplify right side
    529,999.50x = 222,181,717,702.41
  5. Step 5: Solve for x
    x = 222,181,717,702.41/529,999.50
  6. Step 6: Final answer
    x = 419,211.18

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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.