Home / 298,621.40-447,413.70-193,386.20

Finding the Fourth Proportional to 298,621.40, 447,413.70 and 193,386.20

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Solution

The fourth proportional to 298,621.40, 447,413.70 and 193,386.20 is: 289,743.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,621.40 : 447,413.70 = 193,386.20 : x
  2. Step 2: Convert to fraction form
    298,621.40/447,413.70 = 193,386.20/x
  3. Step 3: Cross multiply
    298,621.40x = 447,413.70 × 193,386.20
  4. Step 4: Simplify right side
    298,621.40x = 86,523,635,270.94
  5. Step 5: Solve for x
    x = 86,523,635,270.94/298,621.40
  6. Step 6: Final answer
    x = 289,743.59

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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.