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Finding the Fourth Proportional to 366,920.05, 550,380.08 and 323,617.45

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Solution

The fourth proportional to 366,920.05, 550,380.08 and 323,617.45 is: 485,426.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,920.05 : 550,380.08 = 323,617.45 : x
  2. Step 2: Convert to fraction form
    366,920.05/550,380.08 = 323,617.45/x
  3. Step 3: Cross multiply
    366,920.05x = 550,380.08 × 323,617.45
  4. Step 4: Simplify right side
    366,920.05x = 178,112,598,020.40
  5. Step 5: Solve for x
    x = 178,112,598,020.40/366,920.05
  6. Step 6: Final answer
    x = 485,426.18

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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.