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Finding the Fourth Proportional to 351,492.40, 485,058.54 and 190,347.40

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Solution

The fourth proportional to 351,492.40, 485,058.54 and 190,347.40 is: 262,678.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,492.40 : 485,058.54 = 190,347.40 : x
  2. Step 2: Convert to fraction form
    351,492.40/485,058.54 = 190,347.40/x
  3. Step 3: Cross multiply
    351,492.40x = 485,058.54 × 190,347.40
  4. Step 4: Simplify right side
    351,492.40x = 92,329,631,936.80
  5. Step 5: Solve for x
    x = 92,329,631,936.80/351,492.40
  6. Step 6: Final answer
    x = 262,678.89

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