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Finding the Fourth Proportional to 545,998.52, 819,063.39 and 516,138.68

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Solution

The fourth proportional to 545,998.52, 819,063.39 and 516,138.68 is: 774,270.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,998.52 : 819,063.39 = 516,138.68 : x
  2. Step 2: Convert to fraction form
    545,998.52/819,063.39 = 516,138.68/x
  3. Step 3: Cross multiply
    545,998.52x = 819,063.39 × 516,138.68
  4. Step 4: Simplify right side
    545,998.52x = 422,750,296,950.93
  5. Step 5: Solve for x
    x = 422,750,296,950.93/545,998.52
  6. Step 6: Final answer
    x = 774,270.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.