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Finding the Fourth Proportional to 383,390.92, 529,081.56 and 222,341.44

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Solution

The fourth proportional to 383,390.92, 529,081.56 and 222,341.44 is: 306,832.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,390.92 : 529,081.56 = 222,341.44 : x
  2. Step 2: Convert to fraction form
    383,390.92/529,081.56 = 222,341.44/x
  3. Step 3: Cross multiply
    383,390.92x = 529,081.56 × 222,341.44
  4. Step 4: Simplify right side
    383,390.92x = 117,636,755,927.85
  5. Step 5: Solve for x
    x = 117,636,755,927.85/383,390.92
  6. Step 6: Final answer
    x = 306,832.40

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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.