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Finding the Fourth Proportional to 526,761.26, 790,143.94 and 127,401.39

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Solution

The fourth proportional to 526,761.26, 790,143.94 and 127,401.39 is: 191,102.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,761.26 : 790,143.94 = 127,401.39 : x
  2. Step 2: Convert to fraction form
    526,761.26/790,143.94 = 127,401.39/x
  3. Step 3: Cross multiply
    526,761.26x = 790,143.94 × 127,401.39
  4. Step 4: Simplify right side
    526,761.26x = 100,665,436,415.33
  5. Step 5: Solve for x
    x = 100,665,436,415.33/526,761.26
  6. Step 6: Final answer
    x = 191,102.58

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1.5x scale

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.