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Finding the Fourth Proportional to 377,091.63, 520,355.67 and 222,018.44

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Solution

The fourth proportional to 377,091.63, 520,355.67 and 222,018.44 is: 306,367.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,091.63 : 520,355.67 = 222,018.44 : x
  2. Step 2: Convert to fraction form
    377,091.63/520,355.67 = 222,018.44/x
  3. Step 3: Cross multiply
    377,091.63x = 520,355.67 × 222,018.44
  4. Step 4: Simplify right side
    377,091.63x = 115,528,554,098.56
  5. Step 5: Solve for x
    x = 115,528,554,098.56/377,091.63
  6. Step 6: Final answer
    x = 306,367.33

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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.