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Finding the Fourth Proportional to 986,338.80, 1,476,397.80 and 955,234.80

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Solution

The fourth proportional to 986,338.80, 1,476,397.80 and 955,234.80 is: 1,429,839.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,338.80 : 1,476,397.80 = 955,234.80 : x
  2. Step 2: Convert to fraction form
    986,338.80/1,476,397.80 = 955,234.80/x
  3. Step 3: Cross multiply
    986,338.80x = 1,476,397.80 × 955,234.80
  4. Step 4: Simplify right side
    986,338.80x = 1,410,306,557,203.44
  5. Step 5: Solve for x
    x = 1,410,306,557,203.44/986,338.80
  6. Step 6: Final answer
    x = 1,429,839.89

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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.