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Finding the Fourth Proportional to 299,076.19, 412,491.79 and 191,656.22

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Solution

The fourth proportional to 299,076.19, 412,491.79 and 191,656.22 is: 264,336.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,076.19 : 412,491.79 = 191,656.22 : x
  2. Step 2: Convert to fraction form
    299,076.19/412,491.79 = 191,656.22/x
  3. Step 3: Cross multiply
    299,076.19x = 412,491.79 × 191,656.22
  4. Step 4: Simplify right side
    299,076.19x = 79,056,616,257.68
  5. Step 5: Solve for x
    x = 79,056,616,257.68/299,076.19
  6. Step 6: Final answer
    x = 264,336.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.