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Finding the Fourth Proportional to 366,974.10, 550,461.15 and 354,143.70

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Solution

The fourth proportional to 366,974.10, 550,461.15 and 354,143.70 is: 531,215.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,974.10 : 550,461.15 = 354,143.70 : x
  2. Step 2: Convert to fraction form
    366,974.10/550,461.15 = 354,143.70/x
  3. Step 3: Cross multiply
    366,974.10x = 550,461.15 × 354,143.70
  4. Step 4: Simplify right side
    366,974.10x = 194,942,348,367.26
  5. Step 5: Solve for x
    x = 194,942,348,367.26/366,974.10
  6. Step 6: Final answer
    x = 531,215.55

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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.