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Finding the Fourth Proportional to 865,203.14, 1,297,954.16 and 385,601.34

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Solution

The fourth proportional to 865,203.14, 1,297,954.16 and 385,601.34 is: 578,468.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,203.14 : 1,297,954.16 = 385,601.34 : x
  2. Step 2: Convert to fraction form
    865,203.14/1,297,954.16 = 385,601.34/x
  3. Step 3: Cross multiply
    865,203.14x = 1,297,954.16 × 385,601.34
  4. Step 4: Simplify right side
    865,203.14x = 500,492,863,354.57
  5. Step 5: Solve for x
    x = 500,492,863,354.57/865,203.14
  6. Step 6: Final answer
    x = 578,468.62

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