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Finding the Fourth Proportional to 420,014.94, 629,769.06 and 167,334.42

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Solution

The fourth proportional to 420,014.94, 629,769.06 and 167,334.42 is: 250,900.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,014.94 : 629,769.06 = 167,334.42 : x
  2. Step 2: Convert to fraction form
    420,014.94/629,769.06 = 167,334.42/x
  3. Step 3: Cross multiply
    420,014.94x = 629,769.06 × 167,334.42
  4. Step 4: Simplify right side
    420,014.94x = 105,382,042,750.68
  5. Step 5: Solve for x
    x = 105,382,042,750.68/420,014.94
  6. Step 6: Final answer
    x = 250,900.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.