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Finding the Fourth Proportional to 623,864.40, 935,796.60 and 476,408.40

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Solution

The fourth proportional to 623,864.40, 935,796.60 and 476,408.40 is: 714,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,864.40 : 935,796.60 = 476,408.40 : x
  2. Step 2: Convert to fraction form
    623,864.40/935,796.60 = 476,408.40/x
  3. Step 3: Cross multiply
    623,864.40x = 935,796.60 × 476,408.40
  4. Step 4: Simplify right side
    623,864.40x = 445,821,360,931.44
  5. Step 5: Solve for x
    x = 445,821,360,931.44/623,864.40
  6. Step 6: Final answer
    x = 714,612.60

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