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Finding the Fourth Proportional to 298,317.36, 447,369.48 and 98,600.88

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Solution

The fourth proportional to 298,317.36, 447,369.48 and 98,600.88 is: 147,866.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,317.36 : 447,369.48 = 98,600.88 : x
  2. Step 2: Convert to fraction form
    298,317.36/447,369.48 = 98,600.88/x
  3. Step 3: Cross multiply
    298,317.36x = 447,369.48 × 98,600.88
  4. Step 4: Simplify right side
    298,317.36x = 44,111,024,413.14
  5. Step 5: Solve for x
    x = 44,111,024,413.14/298,317.36
  6. Step 6: Final answer
    x = 147,866.10

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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.