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Finding the Fourth Proportional to 548,231.55, 822,418.17 and 211,368.54

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Solution

The fourth proportional to 548,231.55, 822,418.17 and 211,368.54 is: 317,080.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,231.55 : 822,418.17 = 211,368.54 : x
  2. Step 2: Convert to fraction form
    548,231.55/822,418.17 = 211,368.54/x
  3. Step 3: Cross multiply
    548,231.55x = 822,418.17 × 211,368.54
  4. Step 4: Simplify right side
    548,231.55x = 173,833,327,862.37
  5. Step 5: Solve for x
    x = 173,833,327,862.37/548,231.55
  6. Step 6: Final answer
    x = 317,080.12

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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.