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Finding the Fourth Proportional to 5,978,654.80, 8,969,405.80 and 1,935,143.36

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Solution

The fourth proportional to 5,978,654.80, 8,969,405.80 and 1,935,143.36 is: 2,903,175.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,978,654.80 : 8,969,405.80 = 1,935,143.36 : x
  2. Step 2: Convert to fraction form
    5,978,654.80/8,969,405.80 = 1,935,143.36/x
  3. Step 3: Cross multiply
    5,978,654.80x = 8,969,405.80 × 1,935,143.36
  4. Step 4: Simplify right side
    5,978,654.80x = 17,357,086,077,015.49
  5. Step 5: Solve for x
    x = 17,357,086,077,015.49/5,978,654.80
  6. Step 6: Final answer
    x = 2,903,175.82

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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.