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Finding the Fourth Proportional to 511,661.18, 767,602.74 and 196,118.39

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Solution

The fourth proportional to 511,661.18, 767,602.74 and 196,118.39 is: 294,220.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,661.18 : 767,602.74 = 196,118.39 : x
  2. Step 2: Convert to fraction form
    511,661.18/767,602.74 = 196,118.39/x
  3. Step 3: Cross multiply
    511,661.18x = 767,602.74 × 196,118.39
  4. Step 4: Simplify right side
    511,661.18x = 150,541,013,528.39
  5. Step 5: Solve for x
    x = 150,541,013,528.39/511,661.18
  6. Step 6: Final answer
    x = 294,220.12

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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.