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Finding the Fourth Proportional to 6,616,964.80, 9,934,778.40 and 4,097,540.80

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Solution

The fourth proportional to 6,616,964.80, 9,934,778.40 and 4,097,540.80 is: 6,152,089.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616,964.80 : 9,934,778.40 = 4,097,540.80 : x
  2. Step 2: Convert to fraction form
    6,616,964.80/9,934,778.40 = 4,097,540.80/x
  3. Step 3: Cross multiply
    6,616,964.80x = 9,934,778.40 × 4,097,540.80
  4. Step 4: Simplify right side
    6,616,964.80x = 40,708,159,832,958.72
  5. Step 5: Solve for x
    x = 40,708,159,832,958.72/6,616,964.80
  6. Step 6: Final answer
    x = 6,152,089.52

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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.