Home / 383,050.32-528,528.96-221,895.72

Finding the Fourth Proportional to 383,050.32, 528,528.96 and 221,895.72

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Solution

The fourth proportional to 383,050.32, 528,528.96 and 221,895.72 is: 306,169.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,050.32 : 528,528.96 = 221,895.72 : x
  2. Step 2: Convert to fraction form
    383,050.32/528,528.96 = 221,895.72/x
  3. Step 3: Cross multiply
    383,050.32x = 528,528.96 × 221,895.72
  4. Step 4: Simplify right side
    383,050.32x = 117,278,314,120.05
  5. Step 5: Solve for x
    x = 117,278,314,120.05/383,050.32
  6. Step 6: Final answer
    x = 306,169.47

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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.