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Finding the Fourth Proportional to 529,067.44, 729,999.48 and 314,279.92

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Solution

The fourth proportional to 529,067.44, 729,999.48 and 314,279.92 is: 433,638.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,067.44 : 729,999.48 = 314,279.92 : x
  2. Step 2: Convert to fraction form
    529,067.44/729,999.48 = 314,279.92/x
  3. Step 3: Cross multiply
    529,067.44x = 729,999.48 × 314,279.92
  4. Step 4: Simplify right side
    529,067.44x = 229,424,178,174.44
  5. Step 5: Solve for x
    x = 229,424,178,174.44/529,067.44
  6. Step 6: Final answer
    x = 433,638.82

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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.