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Finding the Fourth Proportional to 605,843.75, 836,061.66 and 330,201.15

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Solution

The fourth proportional to 605,843.75, 836,061.66 and 330,201.15 is: 455,676.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,843.75 : 836,061.66 = 330,201.15 : x
  2. Step 2: Convert to fraction form
    605,843.75/836,061.66 = 330,201.15/x
  3. Step 3: Cross multiply
    605,843.75x = 836,061.66 × 330,201.15
  4. Step 4: Simplify right side
    605,843.75x = 276,068,521,602.91
  5. Step 5: Solve for x
    x = 276,068,521,602.91/605,843.75
  6. Step 6: Final answer
    x = 455,676.11

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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.