Home / 626,413.68-864,453.20-339,933.69

Finding the Fourth Proportional to 626,413.68, 864,453.20 and 339,933.69

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Solution

The fourth proportional to 626,413.68, 864,453.20 and 339,933.69 is: 469,109.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,413.68 : 864,453.20 = 339,933.69 : x
  2. Step 2: Convert to fraction form
    626,413.68/864,453.20 = 339,933.69/x
  3. Step 3: Cross multiply
    626,413.68x = 864,453.20 × 339,933.69
  4. Step 4: Simplify right side
    626,413.68x = 293,856,764,408.64
  5. Step 5: Solve for x
    x = 293,856,764,408.64/626,413.68
  6. Step 6: Final answer
    x = 469,109.75

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1.5x scale

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.