Home / 383,221.28-528,805.32-236,022.68

Finding the Fourth Proportional to 383,221.28, 528,805.32 and 236,022.68

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Solution

The fourth proportional to 383,221.28, 528,805.32 and 236,022.68 is: 325,686.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,221.28 : 528,805.32 = 236,022.68 : x
  2. Step 2: Convert to fraction form
    383,221.28/528,805.32 = 236,022.68/x
  3. Step 3: Cross multiply
    383,221.28x = 528,805.32 × 236,022.68
  4. Step 4: Simplify right side
    383,221.28x = 124,810,048,824.66
  5. Step 5: Solve for x
    x = 124,810,048,824.66/383,221.28
  6. Step 6: Final answer
    x = 325,686.63

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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.