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Finding the Fourth Proportional to 3,710,397.60, 5,553,786.60 and 2,647,515.60

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Solution

The fourth proportional to 3,710,397.60, 5,553,786.60 and 2,647,515.60 is: 3,962,846.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710,397.60 : 5,553,786.60 = 2,647,515.60 : x
  2. Step 2: Convert to fraction form
    3,710,397.60/5,553,786.60 = 2,647,515.60/x
  3. Step 3: Cross multiply
    3,710,397.60x = 5,553,786.60 × 2,647,515.60
  4. Step 4: Simplify right side
    3,710,397.60x = 14,703,736,662,570.96
  5. Step 5: Solve for x
    x = 14,703,736,662,570.96/3,710,397.60
  6. Step 6: Final answer
    x = 3,962,846.64

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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.