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Finding the Fourth Proportional to 548,963.60, 822,874.52 and 212,235.53

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Solution

The fourth proportional to 548,963.60, 822,874.52 and 212,235.53 is: 318,132.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,963.60 : 822,874.52 = 212,235.53 : x
  2. Step 2: Convert to fraction form
    548,963.60/822,874.52 = 212,235.53/x
  3. Step 3: Cross multiply
    548,963.60x = 822,874.52 × 212,235.53
  4. Step 4: Simplify right side
    548,963.60x = 174,643,211,667.59
  5. Step 5: Solve for x
    x = 174,643,211,667.59/548,963.60
  6. Step 6: Final answer
    x = 318,132.59

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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.