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Finding the Fourth Proportional to 444,642.80, 666,485.89 and 192,042.07

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Solution

The fourth proportional to 444,642.80, 666,485.89 and 192,042.07 is: 287,856.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,642.80 : 666,485.89 = 192,042.07 : x
  2. Step 2: Convert to fraction form
    444,642.80/666,485.89 = 192,042.07/x
  3. Step 3: Cross multiply
    444,642.80x = 666,485.89 × 192,042.07
  4. Step 4: Simplify right side
    444,642.80x = 127,993,327,795.07
  5. Step 5: Solve for x
    x = 127,993,327,795.07/444,642.80
  6. Step 6: Final answer
    x = 287,856.52

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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.