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Finding the Fourth Proportional to 539,790.30, 810,179.28 and 273,734.46

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Solution

The fourth proportional to 539,790.30, 810,179.28 and 273,734.46 is: 410,852.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,790.30 : 810,179.28 = 273,734.46 : x
  2. Step 2: Convert to fraction form
    539,790.30/810,179.28 = 273,734.46/x
  3. Step 3: Cross multiply
    539,790.30x = 810,179.28 × 273,734.46
  4. Step 4: Simplify right side
    539,790.30x = 221,773,987,713.99
  5. Step 5: Solve for x
    x = 221,773,987,713.99/539,790.30
  6. Step 6: Final answer
    x = 410,852.12

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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.