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Finding the Fourth Proportional to 965,793.78, 1,448,909.37 and 516,277.80

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Solution

The fourth proportional to 965,793.78, 1,448,909.37 and 516,277.80 is: 774,533.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,793.78 : 1,448,909.37 = 516,277.80 : x
  2. Step 2: Convert to fraction form
    965,793.78/1,448,909.37 = 516,277.80/x
  3. Step 3: Cross multiply
    965,793.78x = 1,448,909.37 × 516,277.80
  4. Step 4: Simplify right side
    965,793.78x = 748,039,741,942.99
  5. Step 5: Solve for x
    x = 748,039,741,942.99/965,793.78
  6. Step 6: Final answer
    x = 774,533.61

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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.