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Finding the Fourth Proportional to 1,179,730.89, 1,760,983.85 and 1,012,326.97

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Solution

The fourth proportional to 1,179,730.89, 1,760,983.85 and 1,012,326.97 is: 1,511,100.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,730.89 : 1,760,983.85 = 1,012,326.97 : x
  2. Step 2: Convert to fraction form
    1,179,730.89/1,760,983.85 = 1,012,326.97/x
  3. Step 3: Cross multiply
    1,179,730.89x = 1,760,983.85 × 1,012,326.97
  4. Step 4: Simplify right side
    1,179,730.89x = 1,782,691,445,089.43
  5. Step 5: Solve for x
    x = 1,782,691,445,089.43/1,179,730.89
  6. Step 6: Final answer
    x = 1,511,100.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.