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Finding the Fourth Proportional to 529,418.88, 730,768.32 and 338,945.28

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Solution

The fourth proportional to 529,418.88, 730,768.32 and 338,945.28 is: 467,853.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,418.88 : 730,768.32 = 338,945.28 : x
  2. Step 2: Convert to fraction form
    529,418.88/730,768.32 = 338,945.28/x
  3. Step 3: Cross multiply
    529,418.88x = 730,768.32 × 338,945.28
  4. Step 4: Simplify right side
    529,418.88x = 247,690,472,837.53
  5. Step 5: Solve for x
    x = 247,690,472,837.53/529,418.88
  6. Step 6: Final answer
    x = 467,853.49

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.