Home / 929,786.78-1,283,007.20-521,933.56

Finding the Fourth Proportional to 929,786.78, 1,283,007.20 and 521,933.56

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Solution

The fourth proportional to 929,786.78, 1,283,007.20 and 521,933.56 is: 720,212.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,786.78 : 1,283,007.20 = 521,933.56 : x
  2. Step 2: Convert to fraction form
    929,786.78/1,283,007.20 = 521,933.56/x
  3. Step 3: Cross multiply
    929,786.78x = 1,283,007.20 × 521,933.56
  4. Step 4: Simplify right side
    929,786.78x = 669,644,509,584.45
  5. Step 5: Solve for x
    x = 669,644,509,584.45/929,786.78
  6. Step 6: Final answer
    x = 720,212.98

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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.