Home / 400,531.44-552,733.29-219,243.72

Finding the Fourth Proportional to 400,531.44, 552,733.29 and 219,243.72

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Solution

The fourth proportional to 400,531.44, 552,733.29 and 219,243.72 is: 302,556.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,531.44 : 552,733.29 = 219,243.72 : x
  2. Step 2: Convert to fraction form
    400,531.44/552,733.29 = 219,243.72/x
  3. Step 3: Cross multiply
    400,531.44x = 552,733.29 × 219,243.72
  4. Step 4: Simplify right side
    400,531.44x = 121,183,302,667.44
  5. Step 5: Solve for x
    x = 121,183,302,667.44/400,531.44
  6. Step 6: Final answer
    x = 302,556.28

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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.