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Finding the Fourth Proportional to 415,923.40, 623,885.10 and 409,702.60

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Solution

The fourth proportional to 415,923.40, 623,885.10 and 409,702.60 is: 614,553.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,923.40 : 623,885.10 = 409,702.60 : x
  2. Step 2: Convert to fraction form
    415,923.40/623,885.10 = 409,702.60/x
  3. Step 3: Cross multiply
    415,923.40x = 623,885.10 × 409,702.60
  4. Step 4: Simplify right side
    415,923.40x = 255,607,347,571.26
  5. Step 5: Solve for x
    x = 255,607,347,571.26/415,923.40
  6. Step 6: Final answer
    x = 614,553.90

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