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Finding the Fourth Proportional to 444,047.60, 666,157.80 and 128,514.80

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Solution

The fourth proportional to 444,047.60, 666,157.80 and 128,514.80 is: 192,797.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,047.60 : 666,157.80 = 128,514.80 : x
  2. Step 2: Convert to fraction form
    444,047.60/666,157.80 = 128,514.80/x
  3. Step 3: Cross multiply
    444,047.60x = 666,157.80 × 128,514.80
  4. Step 4: Simplify right side
    444,047.60x = 85,611,136,435.44
  5. Step 5: Solve for x
    x = 85,611,136,435.44/444,047.60
  6. Step 6: Final answer
    x = 192,797.21

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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.