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Finding the Fourth Proportional to 299,413.70, 448,464.45 and 260,047.70

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Solution

The fourth proportional to 299,413.70, 448,464.45 and 260,047.70 is: 389,501.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,413.70 : 448,464.45 = 260,047.70 : x
  2. Step 2: Convert to fraction form
    299,413.70/448,464.45 = 260,047.70/x
  3. Step 3: Cross multiply
    299,413.70x = 448,464.45 × 260,047.70
  4. Step 4: Simplify right side
    299,413.70x = 116,622,148,754.27
  5. Step 5: Solve for x
    x = 116,622,148,754.27/299,413.70
  6. Step 6: Final answer
    x = 389,501.71

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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.