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Finding the Fourth Proportional to 299,444.40, 449,339.40 and 112,474.80

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Solution

The fourth proportional to 299,444.40, 449,339.40 and 112,474.80 is: 168,777.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,444.40 : 449,339.40 = 112,474.80 : x
  2. Step 2: Convert to fraction form
    299,444.40/449,339.40 = 112,474.80/x
  3. Step 3: Cross multiply
    299,444.40x = 449,339.40 × 112,474.80
  4. Step 4: Simplify right side
    299,444.40x = 50,539,359,147.12
  5. Step 5: Solve for x
    x = 50,539,359,147.12/299,444.40
  6. Step 6: Final answer
    x = 168,777.11

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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.