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Finding the Fourth Proportional to 446,819.70, 616,615.56 and 242,870.49

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Solution

The fourth proportional to 446,819.70, 616,615.56 and 242,870.49 is: 335,163.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,819.70 : 616,615.56 = 242,870.49 : x
  2. Step 2: Convert to fraction form
    446,819.70/616,615.56 = 242,870.49/x
  3. Step 3: Cross multiply
    446,819.70x = 616,615.56 × 242,870.49
  4. Step 4: Simplify right side
    446,819.70x = 149,757,725,180.05
  5. Step 5: Solve for x
    x = 149,757,725,180.05/446,819.70
  6. Step 6: Final answer
    x = 335,163.66

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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.