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Finding the Fourth Proportional to 402,443.31, 555,250.64 and 241,239.54

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Solution

The fourth proportional to 402,443.31, 555,250.64 and 241,239.54 is: 332,837.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,443.31 : 555,250.64 = 241,239.54 : x
  2. Step 2: Convert to fraction form
    402,443.31/555,250.64 = 241,239.54/x
  3. Step 3: Cross multiply
    402,443.31x = 555,250.64 × 241,239.54
  4. Step 4: Simplify right side
    402,443.31x = 133,948,408,978.31
  5. Step 5: Solve for x
    x = 133,948,408,978.31/402,443.31
  6. Step 6: Final answer
    x = 332,837.96

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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.