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Finding the Fourth Proportional to 483,128.40, 724,692.60 and 303,502.80

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Solution

The fourth proportional to 483,128.40, 724,692.60 and 303,502.80 is: 455,254.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,128.40 : 724,692.60 = 303,502.80 : x
  2. Step 2: Convert to fraction form
    483,128.40/724,692.60 = 303,502.80/x
  3. Step 3: Cross multiply
    483,128.40x = 724,692.60 × 303,502.80
  4. Step 4: Simplify right side
    483,128.40x = 219,946,233,239.28
  5. Step 5: Solve for x
    x = 219,946,233,239.28/483,128.40
  6. Step 6: Final answer
    x = 455,254.20

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