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Finding the Fourth Proportional to 525,661.73, 725,413.47 and 283,944.30

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Solution

The fourth proportional to 525,661.73, 725,413.47 and 283,944.30 is: 391,843.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,661.73 : 725,413.47 = 283,944.30 : x
  2. Step 2: Convert to fraction form
    525,661.73/725,413.47 = 283,944.30/x
  3. Step 3: Cross multiply
    525,661.73x = 725,413.47 × 283,944.30
  4. Step 4: Simplify right side
    525,661.73x = 205,977,019,949.72
  5. Step 5: Solve for x
    x = 205,977,019,949.72/525,661.73
  6. Step 6: Final answer
    x = 391,843.29

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1.5x scale

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.