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Finding the Fourth Proportional to 539,745.96, 810,112.86 and 273,690.12

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Solution

The fourth proportional to 539,745.96, 810,112.86 and 273,690.12 is: 410,785.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,745.96 : 810,112.86 = 273,690.12 : x
  2. Step 2: Convert to fraction form
    539,745.96/810,112.86 = 273,690.12/x
  3. Step 3: Cross multiply
    539,745.96x = 810,112.86 × 273,690.12
  4. Step 4: Simplify right side
    539,745.96x = 221,719,885,866.94
  5. Step 5: Solve for x
    x = 221,719,885,866.94/539,745.96
  6. Step 6: Final answer
    x = 410,785.63

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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.