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Finding the Fourth Proportional to 617,638.15, 852,301.06 and 345,660.13

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Solution

The fourth proportional to 617,638.15, 852,301.06 and 345,660.13 is: 476,988.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,638.15 : 852,301.06 = 345,660.13 : x
  2. Step 2: Convert to fraction form
    617,638.15/852,301.06 = 345,660.13/x
  3. Step 3: Cross multiply
    617,638.15x = 852,301.06 × 345,660.13
  4. Step 4: Simplify right side
    617,638.15x = 294,606,495,198.74
  5. Step 5: Solve for x
    x = 294,606,495,198.74/617,638.15
  6. Step 6: Final answer
    x = 476,988.82

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