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Finding the Fourth Proportional to 271,236.40, 407,000.40 and 113,480.80

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Solution

The fourth proportional to 271,236.40, 407,000.40 and 113,480.80 is: 170,282.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,236.40 : 407,000.40 = 113,480.80 : x
  2. Step 2: Convert to fraction form
    271,236.40/407,000.40 = 113,480.80/x
  3. Step 3: Cross multiply
    271,236.40x = 407,000.40 × 113,480.80
  4. Step 4: Simplify right side
    271,236.40x = 46,186,730,992.32
  5. Step 5: Solve for x
    x = 46,186,730,992.32/271,236.40
  6. Step 6: Final answer
    x = 170,282.20

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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.