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Finding the Fourth Proportional to 431,863.56, 595,973.78 and 238,271.26

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Solution

The fourth proportional to 431,863.56, 595,973.78 and 238,271.26 is: 328,815.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,863.56 : 595,973.78 = 238,271.26 : x
  2. Step 2: Convert to fraction form
    431,863.56/595,973.78 = 238,271.26/x
  3. Step 3: Cross multiply
    431,863.56x = 595,973.78 × 238,271.26
  4. Step 4: Simplify right side
    431,863.56x = 142,003,420,954.82
  5. Step 5: Solve for x
    x = 142,003,420,954.82/431,863.56
  6. Step 6: Final answer
    x = 328,815.48

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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.