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Finding the Fourth Proportional to 682,923.62, 942,409.90 and 376,993.44

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Solution

The fourth proportional to 682,923.62, 942,409.90 and 376,993.44 is: 520,237.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,923.62 : 942,409.90 = 376,993.44 : x
  2. Step 2: Convert to fraction form
    682,923.62/942,409.90 = 376,993.44/x
  3. Step 3: Cross multiply
    682,923.62x = 942,409.90 × 376,993.44
  4. Step 4: Simplify right side
    682,923.62x = 355,282,350,091.06
  5. Step 5: Solve for x
    x = 355,282,350,091.06/682,923.62
  6. Step 6: Final answer
    x = 520,237.31

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1.5x scale

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.