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Finding the Fourth Proportional to 272,336.40, 408,504.36 and 82,798.32

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Solution

The fourth proportional to 272,336.40, 408,504.36 and 82,798.32 is: 124,197.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,336.40 : 408,504.36 = 82,798.32 : x
  2. Step 2: Convert to fraction form
    272,336.40/408,504.36 = 82,798.32/x
  3. Step 3: Cross multiply
    272,336.40x = 408,504.36 × 82,798.32
  4. Step 4: Simplify right side
    272,336.40x = 33,823,474,720.68
  5. Step 5: Solve for x
    x = 33,823,474,720.68/272,336.40
  6. Step 6: Final answer
    x = 124,197.41

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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.