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Finding the Fourth Proportional to 438,857.25, 605,623.01 and 237,653.25

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Solution

The fourth proportional to 438,857.25, 605,623.01 and 237,653.25 is: 327,961.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,857.25 : 605,623.01 = 237,653.25 : x
  2. Step 2: Convert to fraction form
    438,857.25/605,623.01 = 237,653.25/x
  3. Step 3: Cross multiply
    438,857.25x = 605,623.01 × 237,653.25
  4. Step 4: Simplify right side
    438,857.25x = 143,928,275,413.02
  5. Step 5: Solve for x
    x = 143,928,275,413.02/438,857.25
  6. Step 6: Final answer
    x = 327,961.49

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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.