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Finding the Fourth Proportional to 644,808.37, 965,951.35 and 531,119.39

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Solution

The fourth proportional to 644,808.37, 965,951.35 and 531,119.39 is: 795,640.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,808.37 : 965,951.35 = 531,119.39 : x
  2. Step 2: Convert to fraction form
    644,808.37/965,951.35 = 531,119.39/x
  3. Step 3: Cross multiply
    644,808.37x = 965,951.35 × 531,119.39
  4. Step 4: Simplify right side
    644,808.37x = 513,035,491,781.68
  5. Step 5: Solve for x
    x = 513,035,491,781.68/644,808.37
  6. Step 6: Final answer
    x = 795,640.25

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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.