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Finding the Fourth Proportional to 548,510.62, 822,379.56 and 211,268.74

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Solution

The fourth proportional to 548,510.62, 822,379.56 and 211,268.74 is: 316,754.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,510.62 : 822,379.56 = 211,268.74 : x
  2. Step 2: Convert to fraction form
    548,510.62/822,379.56 = 211,268.74/x
  3. Step 3: Cross multiply
    548,510.62x = 822,379.56 × 211,268.74
  4. Step 4: Simplify right side
    548,510.62x = 173,743,093,442.95
  5. Step 5: Solve for x
    x = 173,743,093,442.95/548,510.62
  6. Step 6: Final answer
    x = 316,754.29

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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.