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Finding the Fourth Proportional to 570,790.14, 855,522.09 and 215,578.14

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Solution

The fourth proportional to 570,790.14, 855,522.09 and 215,578.14 is: 323,116.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,790.14 : 855,522.09 = 215,578.14 : x
  2. Step 2: Convert to fraction form
    570,790.14/855,522.09 = 215,578.14/x
  3. Step 3: Cross multiply
    570,790.14x = 855,522.09 × 215,578.14
  4. Step 4: Simplify right side
    570,790.14x = 184,431,860,891.11
  5. Step 5: Solve for x
    x = 184,431,860,891.11/570,790.14
  6. Step 6: Final answer
    x = 323,116.76

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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.