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Finding the Fourth Proportional to 383,581.08, 575,566 and 255,584.88

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Solution

The fourth proportional to 383,581.08, 575,566 and 255,584.88 is: 383,506.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,581.08 : 575,566 = 255,584.88 : x
  2. Step 2: Convert to fraction form
    383,581.08/575,566 = 255,584.88/x
  3. Step 3: Cross multiply
    383,581.08x = 575,566 × 255,584.88
  4. Step 4: Simplify right side
    383,581.08x = 147,105,967,042.08
  5. Step 5: Solve for x
    x = 147,105,967,042.08/383,581.08
  6. Step 6: Final answer
    x = 383,506.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.