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Finding the Fourth Proportional to 551,413.54, 760,859.13 and 325,028.26

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Solution

The fourth proportional to 551,413.54, 760,859.13 and 325,028.26 is: 448,485.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,413.54 : 760,859.13 = 325,028.26 : x
  2. Step 2: Convert to fraction form
    551,413.54/760,859.13 = 325,028.26/x
  3. Step 3: Cross multiply
    551,413.54x = 760,859.13 × 325,028.26
  4. Step 4: Simplify right side
    551,413.54x = 247,300,719,129.01
  5. Step 5: Solve for x
    x = 247,300,719,129.01/551,413.54
  6. Step 6: Final answer
    x = 448,485.03

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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.