Home / 383,039.92-528,514.64-221,885.29

Finding the Fourth Proportional to 383,039.92, 528,514.64 and 221,885.29

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Solution

The fourth proportional to 383,039.92, 528,514.64 and 221,885.29 is: 306,155.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,039.92 : 528,514.64 = 221,885.29 : x
  2. Step 2: Convert to fraction form
    383,039.92/528,514.64 = 221,885.29/x
  3. Step 3: Cross multiply
    383,039.92x = 528,514.64 × 221,885.29
  4. Step 4: Simplify right side
    383,039.92x = 117,269,621,523.07
  5. Step 5: Solve for x
    x = 117,269,621,523.07/383,039.92
  6. Step 6: Final answer
    x = 306,155.09

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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.