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Finding the Fourth Proportional to 383,099.92, 528,677.88 and 222,048.39

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Solution

The fourth proportional to 383,099.92, 528,677.88 and 222,048.39 is: 306,426.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,099.92 : 528,677.88 = 222,048.39 : x
  2. Step 2: Convert to fraction form
    383,099.92/528,677.88 = 222,048.39/x
  3. Step 3: Cross multiply
    383,099.92x = 528,677.88 × 222,048.39
  4. Step 4: Simplify right side
    383,099.92x = 117,392,070,760.92
  5. Step 5: Solve for x
    x = 117,392,070,760.92/383,099.92
  6. Step 6: Final answer
    x = 306,426.77

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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.