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Finding the Fourth Proportional to 300,472.20, 414,650.49 and 171,410.45

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Solution

The fourth proportional to 300,472.20, 414,650.49 and 171,410.45 is: 236,545.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,472.20 : 414,650.49 = 171,410.45 : x
  2. Step 2: Convert to fraction form
    300,472.20/414,650.49 = 171,410.45/x
  3. Step 3: Cross multiply
    300,472.20x = 414,650.49 × 171,410.45
  4. Step 4: Simplify right side
    300,472.20x = 71,075,425,010.37
  5. Step 5: Solve for x
    x = 71,075,425,010.37/300,472.20
  6. Step 6: Final answer
    x = 236,545.76

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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.