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Finding the Fourth Proportional to 525,661.81, 725,413.18 and 283,944.39

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Solution

The fourth proportional to 525,661.81, 725,413.18 and 283,944.39 is: 391,843.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,661.81 : 725,413.18 = 283,944.39 : x
  2. Step 2: Convert to fraction form
    525,661.81/725,413.18 = 283,944.39/x
  3. Step 3: Cross multiply
    525,661.81x = 725,413.18 × 283,944.39
  4. Step 4: Simplify right side
    525,661.81x = 205,977,002,893.06
  5. Step 5: Solve for x
    x = 205,977,002,893.06/525,661.81
  6. Step 6: Final answer
    x = 391,843.19

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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.