Home / 638,365.82-957,688.77-189,121.80

Finding the Fourth Proportional to 638,365.82, 957,688.77 and 189,121.80

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Solution

The fourth proportional to 638,365.82, 957,688.77 and 189,121.80 is: 283,724.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,365.82 : 957,688.77 = 189,121.80 : x
  2. Step 2: Convert to fraction form
    638,365.82/957,688.77 = 189,121.80/x
  3. Step 3: Cross multiply
    638,365.82x = 957,688.77 × 189,121.80
  4. Step 4: Simplify right side
    638,365.82x = 181,119,824,022.19
  5. Step 5: Solve for x
    x = 181,119,824,022.19/638,365.82
  6. Step 6: Final answer
    x = 283,724.19

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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.