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Finding the Fourth Proportional to 625,413.85, 863,071.85 and 338,933.93

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Solution

The fourth proportional to 625,413.85, 863,071.85 and 338,933.93 is: 467,729.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,413.85 : 863,071.85 = 338,933.93 : x
  2. Step 2: Convert to fraction form
    625,413.85/863,071.85 = 338,933.93/x
  3. Step 3: Cross multiply
    625,413.85x = 863,071.85 × 338,933.93
  4. Step 4: Simplify right side
    625,413.85x = 292,524,330,524.85
  5. Step 5: Solve for x
    x = 292,524,330,524.85/625,413.85
  6. Step 6: Final answer
    x = 467,729.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.