Home / 290,428.03-400,743.66-181,519.53

Finding the Fourth Proportional to 290,428.03, 400,743.66 and 181,519.53

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Solution

The fourth proportional to 290,428.03, 400,743.66 and 181,519.53 is: 250,467.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,428.03 : 400,743.66 = 181,519.53 : x
  2. Step 2: Convert to fraction form
    290,428.03/400,743.66 = 181,519.53/x
  3. Step 3: Cross multiply
    290,428.03x = 400,743.66 × 181,519.53
  4. Step 4: Simplify right side
    290,428.03x = 72,742,800,813.68
  5. Step 5: Solve for x
    x = 72,742,800,813.68/290,428.03
  6. Step 6: Final answer
    x = 250,467.56

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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.