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Finding the Fourth Proportional to 555,610.44, 766,696.92 and 313,914

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Solution

The fourth proportional to 555,610.44, 766,696.92 and 313,914 is: 433,175.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,610.44 : 766,696.92 = 313,914 : x
  2. Step 2: Convert to fraction form
    555,610.44/766,696.92 = 313,914/x
  3. Step 3: Cross multiply
    555,610.44x = 766,696.92 × 313,914
  4. Step 4: Simplify right side
    555,610.44x = 240,676,896,944.88
  5. Step 5: Solve for x
    x = 240,676,896,944.88/555,610.44
  6. Step 6: Final answer
    x = 433,175.62

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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.