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Finding the Fourth Proportional to 691,413.37, 954,213.12 and 419,550.14

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Solution

The fourth proportional to 691,413.37, 954,213.12 and 419,550.14 is: 579,017.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,413.37 : 954,213.12 = 419,550.14 : x
  2. Step 2: Convert to fraction form
    691,413.37/954,213.12 = 419,550.14/x
  3. Step 3: Cross multiply
    691,413.37x = 954,213.12 × 419,550.14
  4. Step 4: Simplify right side
    691,413.37x = 400,340,245,988.09
  5. Step 5: Solve for x
    x = 400,340,245,988.09/691,413.37
  6. Step 6: Final answer
    x = 579,017.22

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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.