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Finding the Fourth Proportional to 545,997.52, 819,061.89 and 516,137.68

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Solution

The fourth proportional to 545,997.52, 819,061.89 and 516,137.68 is: 774,268.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,997.52 : 819,061.89 = 516,137.68 : x
  2. Step 2: Convert to fraction form
    545,997.52/819,061.89 = 516,137.68/x
  3. Step 3: Cross multiply
    545,997.52x = 819,061.89 × 516,137.68
  4. Step 4: Simplify right side
    545,997.52x = 422,748,703,681.02
  5. Step 5: Solve for x
    x = 422,748,703,681.02/545,997.52
  6. Step 6: Final answer
    x = 774,268.54

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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.