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Finding the Fourth Proportional to 659,231.50, 988,260.81 and 238,413.82

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Solution

The fourth proportional to 659,231.50, 988,260.81 and 238,413.82 is: 357,408.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,231.50 : 988,260.81 = 238,413.82 : x
  2. Step 2: Convert to fraction form
    659,231.50/988,260.81 = 238,413.82/x
  3. Step 3: Cross multiply
    659,231.50x = 988,260.81 × 238,413.82
  4. Step 4: Simplify right side
    659,231.50x = 235,615,034,868.39
  5. Step 5: Solve for x
    x = 235,615,034,868.39/659,231.50
  6. Step 6: Final answer
    x = 357,408.64

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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.