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Finding the Fourth Proportional to 383,416.37, 529,116.69 and 222,366.90

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Solution

The fourth proportional to 383,416.37, 529,116.69 and 222,366.90 is: 306,867.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,416.37 : 529,116.69 = 222,366.90 : x
  2. Step 2: Convert to fraction form
    383,416.37/529,116.69 = 222,366.90/x
  3. Step 3: Cross multiply
    383,416.37x = 529,116.69 × 222,366.90
  4. Step 4: Simplify right side
    383,416.37x = 117,658,038,582.48
  5. Step 5: Solve for x
    x = 117,658,038,582.48/383,416.37
  6. Step 6: Final answer
    x = 306,867.54

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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.