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Finding the Fourth Proportional to 548,620.44, 757,172.51 and 306,919.35

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Solution

The fourth proportional to 548,620.44, 757,172.51 and 306,919.35 is: 423,591.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,620.44 : 757,172.51 = 306,919.35 : x
  2. Step 2: Convert to fraction form
    548,620.44/757,172.51 = 306,919.35/x
  3. Step 3: Cross multiply
    548,620.44x = 757,172.51 × 306,919.35
  4. Step 4: Simplify right side
    548,620.44x = 232,390,896,352.97
  5. Step 5: Solve for x
    x = 232,390,896,352.97/548,620.44
  6. Step 6: Final answer
    x = 423,591.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.