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Finding the Fourth Proportional to 366,906.70, 550,360.05 and 307,857.70

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Solution

The fourth proportional to 366,906.70, 550,360.05 and 307,857.70 is: 461,786.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,906.70 : 550,360.05 = 307,857.70 : x
  2. Step 2: Convert to fraction form
    366,906.70/550,360.05 = 307,857.70/x
  3. Step 3: Cross multiply
    366,906.70x = 550,360.05 × 307,857.70
  4. Step 4: Simplify right side
    366,906.70x = 169,432,579,164.89
  5. Step 5: Solve for x
    x = 169,432,579,164.89/366,906.70
  6. Step 6: Final answer
    x = 461,786.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.