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Finding the Fourth Proportional to 993,608.70, 1,490,413.05 and 394,712.70

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Solution

The fourth proportional to 993,608.70, 1,490,413.05 and 394,712.70 is: 592,069.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,608.70 : 1,490,413.05 = 394,712.70 : x
  2. Step 2: Convert to fraction form
    993,608.70/1,490,413.05 = 394,712.70/x
  3. Step 3: Cross multiply
    993,608.70x = 1,490,413.05 × 394,712.70
  4. Step 4: Simplify right side
    993,608.70x = 588,284,959,080.74
  5. Step 5: Solve for x
    x = 588,284,959,080.74/993,608.70
  6. Step 6: Final answer
    x = 592,069.05

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