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Finding the Fourth Proportional to 383,990.58, 576,096.57 and 117,790.29

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Solution

The fourth proportional to 383,990.58, 576,096.57 and 117,790.29 is: 176,719.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,990.58 : 576,096.57 = 117,790.29 : x
  2. Step 2: Convert to fraction form
    383,990.58/576,096.57 = 117,790.29/x
  3. Step 3: Cross multiply
    383,990.58x = 576,096.57 × 117,790.29
  4. Step 4: Simplify right side
    383,990.58x = 67,858,582,048.31
  5. Step 5: Solve for x
    x = 67,858,582,048.31/383,990.58
  6. Step 6: Final answer
    x = 176,719.39

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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.