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Finding the Fourth Proportional to 515,540.49, 773,378.67 and 191,284.49

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Solution

The fourth proportional to 515,540.49, 773,378.67 and 191,284.49 is: 286,951.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,540.49 : 773,378.67 = 191,284.49 : x
  2. Step 2: Convert to fraction form
    515,540.49/773,378.67 = 191,284.49/x
  3. Step 3: Cross multiply
    515,540.49x = 773,378.67 × 191,284.49
  4. Step 4: Simplify right side
    515,540.49x = 147,935,344,467.83
  5. Step 5: Solve for x
    x = 147,935,344,467.83/515,540.49
  6. Step 6: Final answer
    x = 286,951.94

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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.