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Finding the Fourth Proportional to 505,698.35, 697,884.98 and 290,838.62

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Solution

The fourth proportional to 505,698.35, 697,884.98 and 290,838.62 is: 401,369.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,698.35 : 697,884.98 = 290,838.62 : x
  2. Step 2: Convert to fraction form
    505,698.35/697,884.98 = 290,838.62/x
  3. Step 3: Cross multiply
    505,698.35x = 697,884.98 × 290,838.62
  4. Step 4: Simplify right side
    505,698.35x = 202,971,904,792.45
  5. Step 5: Solve for x
    x = 202,971,904,792.45/505,698.35
  6. Step 6: Final answer
    x = 401,369.53

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