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Finding the Fourth Proportional to 6,461,469.45, 8,916,807.11 and 3,560,859.45

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Solution

The fourth proportional to 6,461,469.45, 8,916,807.11 and 3,560,859.45 is: 4,913,974.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,461,469.45 : 8,916,807.11 = 3,560,859.45 : x
  2. Step 2: Convert to fraction form
    6,461,469.45/8,916,807.11 = 3,560,859.45/x
  3. Step 3: Cross multiply
    6,461,469.45x = 8,916,807.11 × 3,560,859.45
  4. Step 4: Simplify right side
    6,461,469.45x = 31,751,496,843,666.39
  5. Step 5: Solve for x
    x = 31,751,496,843,666.39/6,461,469.45
  6. Step 6: Final answer
    x = 4,913,974.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.