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Finding the Fourth Proportional to 4,936,654.72, 7,405,306.98 and 1,293,473.80

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Solution

The fourth proportional to 4,936,654.72, 7,405,306.98 and 1,293,473.80 is: 1,940,295.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,936,654.72 : 7,405,306.98 = 1,293,473.80 : x
  2. Step 2: Convert to fraction form
    4,936,654.72/7,405,306.98 = 1,293,473.80/x
  3. Step 3: Cross multiply
    4,936,654.72x = 7,405,306.98 × 1,293,473.80
  4. Step 4: Simplify right side
    4,936,654.72x = 9,578,570,522,560.59
  5. Step 5: Solve for x
    x = 9,578,570,522,560.59/4,936,654.72
  6. Step 6: Final answer
    x = 1,940,295.82

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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.