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Finding the Fourth Proportional to 444,619.20, 666,928.80 and 444,619.20

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Solution

The fourth proportional to 444,619.20, 666,928.80 and 444,619.20 is: 666,928.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,619.20 : 666,928.80 = 444,619.20 : x
  2. Step 2: Convert to fraction form
    444,619.20/666,928.80 = 444,619.20/x
  3. Step 3: Cross multiply
    444,619.20x = 666,928.80 × 444,619.20
  4. Step 4: Simplify right side
    444,619.20x = 296,529,349,512.96
  5. Step 5: Solve for x
    x = 296,529,349,512.96/444,619.20
  6. Step 6: Final answer
    x = 666,928.80

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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.