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Finding the Fourth Proportional to 374,219.20, 561,328.80 and 216,366.40

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Solution

The fourth proportional to 374,219.20, 561,328.80 and 216,366.40 is: 324,549.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,219.20 : 561,328.80 = 216,366.40 : x
  2. Step 2: Convert to fraction form
    374,219.20/561,328.80 = 216,366.40/x
  3. Step 3: Cross multiply
    374,219.20x = 561,328.80 × 216,366.40
  4. Step 4: Simplify right side
    374,219.20x = 121,452,691,672.32
  5. Step 5: Solve for x
    x = 121,452,691,672.32/374,219.20
  6. Step 6: Final answer
    x = 324,549.60

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