Home / 383,983.36-529,896.47-211,901.33

Finding the Fourth Proportional to 383,983.36, 529,896.47 and 211,901.33

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Solution

The fourth proportional to 383,983.36, 529,896.47 and 211,901.33 is: 292,423.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,983.36 : 529,896.47 = 211,901.33 : x
  2. Step 2: Convert to fraction form
    383,983.36/529,896.47 = 211,901.33/x
  3. Step 3: Cross multiply
    383,983.36x = 529,896.47 × 211,901.33
  4. Step 4: Simplify right side
    383,983.36x = 112,285,770,037.95
  5. Step 5: Solve for x
    x = 112,285,770,037.95/383,983.36
  6. Step 6: Final answer
    x = 292,423.53

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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.