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Finding the Fourth Proportional to 548,692.33, 757,224.83 and 306,960.49

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Solution

The fourth proportional to 548,692.33, 757,224.83 and 306,960.49 is: 423,621.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,692.33 : 757,224.83 = 306,960.49 : x
  2. Step 2: Convert to fraction form
    548,692.33/757,224.83 = 306,960.49/x
  3. Step 3: Cross multiply
    548,692.33x = 757,224.83 × 306,960.49
  4. Step 4: Simplify right side
    548,692.33x = 232,438,101,448.18
  5. Step 5: Solve for x
    x = 232,438,101,448.18/548,692.33
  6. Step 6: Final answer
    x = 423,621.93

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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.