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Finding the Fourth Proportional to 443,492.80, 665,239.20 and 310,523.20

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Solution

The fourth proportional to 443,492.80, 665,239.20 and 310,523.20 is: 465,784.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,492.80 : 665,239.20 = 310,523.20 : x
  2. Step 2: Convert to fraction form
    443,492.80/665,239.20 = 310,523.20/x
  3. Step 3: Cross multiply
    443,492.80x = 665,239.20 × 310,523.20
  4. Step 4: Simplify right side
    443,492.80x = 206,572,205,149.44
  5. Step 5: Solve for x
    x = 206,572,205,149.44/443,492.80
  6. Step 6: Final answer
    x = 465,784.80

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