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Finding the Fourth Proportional to 555,866.69, 766,814.33 and 351,573.55

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Solution

The fourth proportional to 555,866.69, 766,814.33 and 351,573.55 is: 484,993.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,866.69 : 766,814.33 = 351,573.55 : x
  2. Step 2: Convert to fraction form
    555,866.69/766,814.33 = 351,573.55/x
  3. Step 3: Cross multiply
    555,866.69x = 766,814.33 × 351,573.55
  4. Step 4: Simplify right side
    555,866.69x = 269,591,635,150.87
  5. Step 5: Solve for x
    x = 269,591,635,150.87/555,866.69
  6. Step 6: Final answer
    x = 484,993.33

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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.