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Finding the Fourth Proportional to 299,404.60, 449,106.90 and 193,116.40

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Solution

The fourth proportional to 299,404.60, 449,106.90 and 193,116.40 is: 289,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,404.60 : 449,106.90 = 193,116.40 : x
  2. Step 2: Convert to fraction form
    299,404.60/449,106.90 = 193,116.40/x
  3. Step 3: Cross multiply
    299,404.60x = 449,106.90 × 193,116.40
  4. Step 4: Simplify right side
    299,404.60x = 86,729,907,743.16
  5. Step 5: Solve for x
    x = 86,729,907,743.16/299,404.60
  6. Step 6: Final answer
    x = 289,674.60

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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.