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Finding the Fourth Proportional to 722,400.28, 996,919.88 and 435,865

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Solution

The fourth proportional to 722,400.28, 996,919.88 and 435,865 is: 601,498.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,400.28 : 996,919.88 = 435,865 : x
  2. Step 2: Convert to fraction form
    722,400.28/996,919.88 = 435,865/x
  3. Step 3: Cross multiply
    722,400.28x = 996,919.88 × 435,865
  4. Step 4: Simplify right side
    722,400.28x = 434,522,483,496.20
  5. Step 5: Solve for x
    x = 434,522,483,496.20/722,400.28
  6. Step 6: Final answer
    x = 601,498.22

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