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Finding the Fourth Proportional to 605,843.04, 836,080.20 and 347,742.12

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Solution

The fourth proportional to 605,843.04, 836,080.20 and 347,742.12 is: 479,893.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,843.04 : 836,080.20 = 347,742.12 : x
  2. Step 2: Convert to fraction form
    605,843.04/836,080.20 = 347,742.12/x
  3. Step 3: Cross multiply
    605,843.04x = 836,080.20 × 347,742.12
  4. Step 4: Simplify right side
    605,843.04x = 290,740,301,238.02
  5. Step 5: Solve for x
    x = 290,740,301,238.02/605,843.04
  6. Step 6: Final answer
    x = 479,893.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.