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Finding the Fourth Proportional to 388,972.40, 583,228.20 and 202,348.40

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Solution

The fourth proportional to 388,972.40, 583,228.20 and 202,348.40 is: 303,402.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,972.40 : 583,228.20 = 202,348.40 : x
  2. Step 2: Convert to fraction form
    388,972.40/583,228.20 = 202,348.40/x
  3. Step 3: Cross multiply
    388,972.40x = 583,228.20 × 202,348.40
  4. Step 4: Simplify right side
    388,972.40x = 118,015,293,104.88
  5. Step 5: Solve for x
    x = 118,015,293,104.88/388,972.40
  6. Step 6: Final answer
    x = 303,402.74

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