Home / 383,491.26-529,219.71-222,441.66

Finding the Fourth Proportional to 383,491.26, 529,219.71 and 222,441.66

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Solution

The fourth proportional to 383,491.26, 529,219.71 and 222,441.66 is: 306,970.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,491.26 : 529,219.71 = 222,441.66 : x
  2. Step 2: Convert to fraction form
    383,491.26/529,219.71 = 222,441.66/x
  3. Step 3: Cross multiply
    383,491.26x = 529,219.71 × 222,441.66
  4. Step 4: Simplify right side
    383,491.26x = 117,720,510,797.12
  5. Step 5: Solve for x
    x = 117,720,510,797.12/383,491.26
  6. Step 6: Final answer
    x = 306,970.52

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Double scale
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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.