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Finding the Fourth Proportional to 355,004.81, 532,112.69 and 270,486.27

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Solution

The fourth proportional to 355,004.81, 532,112.69 and 270,486.27 is: 405,428.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,004.81 : 532,112.69 = 270,486.27 : x
  2. Step 2: Convert to fraction form
    355,004.81/532,112.69 = 270,486.27/x
  3. Step 3: Cross multiply
    355,004.81x = 532,112.69 × 270,486.27
  4. Step 4: Simplify right side
    355,004.81x = 143,929,177,413.98
  5. Step 5: Solve for x
    x = 143,929,177,413.98/355,004.81
  6. Step 6: Final answer
    x = 405,428.81

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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.