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Finding the Fourth Proportional to 526,841.28, 790,173.52 and 189,819.11

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Solution

The fourth proportional to 526,841.28, 790,173.52 and 189,819.11 is: 284,696.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,841.28 : 790,173.52 = 189,819.11 : x
  2. Step 2: Convert to fraction form
    526,841.28/790,173.52 = 189,819.11/x
  3. Step 3: Cross multiply
    526,841.28x = 790,173.52 × 189,819.11
  4. Step 4: Simplify right side
    526,841.28x = 149,990,030,361.10
  5. Step 5: Solve for x
    x = 149,990,030,361.10/526,841.28
  6. Step 6: Final answer
    x = 284,696.81

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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.