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Finding the Fourth Proportional to 383,416.87, 529,117.38 and 222,367.41

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Solution

The fourth proportional to 383,416.87, 529,117.38 and 222,367.41 is: 306,868.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,416.87 : 529,117.38 = 222,367.41 : x
  2. Step 2: Convert to fraction form
    383,416.87/529,117.38 = 222,367.41/x
  3. Step 3: Cross multiply
    383,416.87x = 529,117.38 × 222,367.41
  4. Step 4: Simplify right side
    383,416.87x = 117,658,457,619.16
  5. Step 5: Solve for x
    x = 117,658,457,619.16/383,416.87
  6. Step 6: Final answer
    x = 306,868.23

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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.