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Finding the Fourth Proportional to 383,415.81, 529,115.91 and 222,366.34

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Solution

The fourth proportional to 383,415.81, 529,115.91 and 222,366.34 is: 306,866.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,415.81 : 529,115.91 = 222,366.34 : x
  2. Step 2: Convert to fraction form
    383,415.81/529,115.91 = 222,366.34/x
  3. Step 3: Cross multiply
    383,415.81x = 529,115.91 × 222,366.34
  4. Step 4: Simplify right side
    383,415.81x = 117,657,568,342.47
  5. Step 5: Solve for x
    x = 117,657,568,342.47/383,415.81
  6. Step 6: Final answer
    x = 306,866.76

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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.