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Finding the Fourth Proportional to 459,413.40, 687,564.90 and 403,426.20

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Solution

The fourth proportional to 459,413.40, 687,564.90 and 403,426.20 is: 603,773.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,413.40 : 687,564.90 = 403,426.20 : x
  2. Step 2: Convert to fraction form
    459,413.40/687,564.90 = 403,426.20/x
  3. Step 3: Cross multiply
    459,413.40x = 687,564.90 × 403,426.20
  4. Step 4: Simplify right side
    459,413.40x = 277,381,694,860.38
  5. Step 5: Solve for x
    x = 277,381,694,860.38/459,413.40
  6. Step 6: Final answer
    x = 603,773.63

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