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Finding the Fourth Proportional to 498,311.40, 747,467.10 and 348,720.60

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Solution

The fourth proportional to 498,311.40, 747,467.10 and 348,720.60 is: 523,080.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,311.40 : 747,467.10 = 348,720.60 : x
  2. Step 2: Convert to fraction form
    498,311.40/747,467.10 = 348,720.60/x
  3. Step 3: Cross multiply
    498,311.40x = 747,467.10 × 348,720.60
  4. Step 4: Simplify right side
    498,311.40x = 260,657,175,592.26
  5. Step 5: Solve for x
    x = 260,657,175,592.26/498,311.40
  6. Step 6: Final answer
    x = 523,080.90

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