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Finding the Fourth Proportional to 468,791.40, 646,885.80 and 262,021.08

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Solution

The fourth proportional to 468,791.40, 646,885.80 and 262,021.08 is: 361,563.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,791.40 : 646,885.80 = 262,021.08 : x
  2. Step 2: Convert to fraction form
    468,791.40/646,885.80 = 262,021.08/x
  3. Step 3: Cross multiply
    468,791.40x = 646,885.80 × 262,021.08
  4. Step 4: Simplify right side
    468,791.40x = 169,497,715,952.66
  5. Step 5: Solve for x
    x = 169,497,715,952.66/468,791.40
  6. Step 6: Final answer
    x = 361,563.19

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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.