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Finding the Fourth Proportional to 526,791.30, 790,106.76 and 171,804.75

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Solution

The fourth proportional to 526,791.30, 790,106.76 and 171,804.75 is: 257,680.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,791.30 : 790,106.76 = 171,804.75 : x
  2. Step 2: Convert to fraction form
    526,791.30/790,106.76 = 171,804.75/x
  3. Step 3: Cross multiply
    526,791.30x = 790,106.76 × 171,804.75
  4. Step 4: Simplify right side
    526,791.30x = 135,744,094,375.11
  5. Step 5: Solve for x
    x = 135,744,094,375.11/526,791.30
  6. Step 6: Final answer
    x = 257,680.97

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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.