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Finding the Fourth Proportional to 492,390.84, 738,586.26 and 118,413.84

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Solution

The fourth proportional to 492,390.84, 738,586.26 and 118,413.84 is: 177,620.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,390.84 : 738,586.26 = 118,413.84 : x
  2. Step 2: Convert to fraction form
    492,390.84/738,586.26 = 118,413.84/x
  3. Step 3: Cross multiply
    492,390.84x = 738,586.26 × 118,413.84
  4. Step 4: Simplify right side
    492,390.84x = 87,458,835,217.84
  5. Step 5: Solve for x
    x = 87,458,835,217.84/492,390.84
  6. Step 6: Final answer
    x = 177,620.76

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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.