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Finding the Fourth Proportional to 456,837.80, 685,299.90 and 124,413.80

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Solution

The fourth proportional to 456,837.80, 685,299.90 and 124,413.80 is: 186,632.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,837.80 : 685,299.90 = 124,413.80 : x
  2. Step 2: Convert to fraction form
    456,837.80/685,299.90 = 124,413.80/x
  3. Step 3: Cross multiply
    456,837.80x = 685,299.90 × 124,413.80
  4. Step 4: Simplify right side
    456,837.80x = 85,260,764,698.62
  5. Step 5: Solve for x
    x = 85,260,764,698.62/456,837.80
  6. Step 6: Final answer
    x = 186,632.46

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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.