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Finding the Fourth Proportional to 492,659.55, 678,941.19 and 356,462.91

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Solution

The fourth proportional to 492,659.55, 678,941.19 and 356,462.91 is: 491,246.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,659.55 : 678,941.19 = 356,462.91 : x
  2. Step 2: Convert to fraction form
    492,659.55/678,941.19 = 356,462.91/x
  3. Step 3: Cross multiply
    492,659.55x = 678,941.19 × 356,462.91
  4. Step 4: Simplify right side
    492,659.55x = 242,017,352,306.26
  5. Step 5: Solve for x
    x = 242,017,352,306.26/492,659.55
  6. Step 6: Final answer
    x = 491,246.65

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