Home / 438,067.56-657,172.32-171,683.64

Finding the Fourth Proportional to 438,067.56, 657,172.32 and 171,683.64

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Solution

The fourth proportional to 438,067.56, 657,172.32 and 171,683.64 is: 257,553.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,067.56 : 657,172.32 = 171,683.64 : x
  2. Step 2: Convert to fraction form
    438,067.56/657,172.32 = 171,683.64/x
  3. Step 3: Cross multiply
    438,067.56x = 657,172.32 × 171,683.64
  4. Step 4: Simplify right side
    438,067.56x = 112,825,736,004.85
  5. Step 5: Solve for x
    x = 112,825,736,004.85/438,067.56
  6. Step 6: Final answer
    x = 257,553.28

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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.