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Finding the Fourth Proportional to 682,864.22, 942,352.81 and 376,940.80

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Solution

The fourth proportional to 682,864.22, 942,352.81 and 376,940.80 is: 520,178.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,864.22 : 942,352.81 = 376,940.80 : x
  2. Step 2: Convert to fraction form
    682,864.22/942,352.81 = 376,940.80/x
  3. Step 3: Cross multiply
    682,864.22x = 942,352.81 × 376,940.80
  4. Step 4: Simplify right side
    682,864.22x = 355,211,222,083.65
  5. Step 5: Solve for x
    x = 355,211,222,083.65/682,864.22
  6. Step 6: Final answer
    x = 520,178.41

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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.