Home / 386,944.44-534,007.26-257,661.24

Finding the Fourth Proportional to 386,944.44, 534,007.26 and 257,661.24

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Solution

The fourth proportional to 386,944.44, 534,007.26 and 257,661.24 is: 355,588.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,944.44 : 534,007.26 = 257,661.24 : x
  2. Step 2: Convert to fraction form
    386,944.44/534,007.26 = 257,661.24/x
  3. Step 3: Cross multiply
    386,944.44x = 534,007.26 × 257,661.24
  4. Step 4: Simplify right side
    386,944.44x = 137,592,972,780.60
  5. Step 5: Solve for x
    x = 137,592,972,780.60/386,944.44
  6. Step 6: Final answer
    x = 355,588.45

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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.