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Finding the Fourth Proportional to 311,809.77, 430,297.11 and 168,569.37

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Solution

The fourth proportional to 311,809.77, 430,297.11 and 168,569.37 is: 232,625.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,809.77 : 430,297.11 = 168,569.37 : x
  2. Step 2: Convert to fraction form
    311,809.77/430,297.11 = 168,569.37/x
  3. Step 3: Cross multiply
    311,809.77x = 430,297.11 × 168,569.37
  4. Step 4: Simplify right side
    311,809.77x = 72,534,912,745.52
  5. Step 5: Solve for x
    x = 72,534,912,745.52/311,809.77
  6. Step 6: Final answer
    x = 232,625.53

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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.