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Finding the Fourth Proportional to 6,631,846.40, 9,953,018.40 and 2,590,270.40

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Solution

The fourth proportional to 6,631,846.40, 9,953,018.40 and 2,590,270.40 is: 3,887,455.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631,846.40 : 9,953,018.40 = 2,590,270.40 : x
  2. Step 2: Convert to fraction form
    6,631,846.40/9,953,018.40 = 2,590,270.40/x
  3. Step 3: Cross multiply
    6,631,846.40x = 9,953,018.40 × 2,590,270.40
  4. Step 4: Simplify right side
    6,631,846.40x = 25,781,008,952,175.36
  5. Step 5: Solve for x
    x = 25,781,008,952,175.36/6,631,846.40
  6. Step 6: Final answer
    x = 3,887,455.68

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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.