Home / 383,868.52-529,726.26-211,786.36

Finding the Fourth Proportional to 383,868.52, 529,726.26 and 211,786.36

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Solution

The fourth proportional to 383,868.52, 529,726.26 and 211,786.36 is: 292,258.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,868.52 : 529,726.26 = 211,786.36 : x
  2. Step 2: Convert to fraction form
    383,868.52/529,726.26 = 211,786.36/x
  3. Step 3: Cross multiply
    383,868.52x = 529,726.26 × 211,786.36
  4. Step 4: Simplify right side
    383,868.52x = 112,188,796,401.81
  5. Step 5: Solve for x
    x = 112,188,796,401.81/383,868.52
  6. Step 6: Final answer
    x = 292,258.39

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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.