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Finding the Fourth Proportional to 468,941.22, 647,130.38 and 264,987.81

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Solution

The fourth proportional to 468,941.22, 647,130.38 and 264,987.81 is: 365,678.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,941.22 : 647,130.38 = 264,987.81 : x
  2. Step 2: Convert to fraction form
    468,941.22/647,130.38 = 264,987.81/x
  3. Step 3: Cross multiply
    468,941.22x = 647,130.38 × 264,987.81
  4. Step 4: Simplify right side
    468,941.22x = 171,481,660,855.73
  5. Step 5: Solve for x
    x = 171,481,660,855.73/468,941.22
  6. Step 6: Final answer
    x = 365,678.37

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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.