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Finding the Fourth Proportional to 468,796.98, 646,940.61 and 253,938.81

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Solution

The fourth proportional to 468,796.98, 646,940.61 and 253,938.81 is: 350,435.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,796.98 : 646,940.61 = 253,938.81 : x
  2. Step 2: Convert to fraction form
    468,796.98/646,940.61 = 253,938.81/x
  3. Step 3: Cross multiply
    468,796.98x = 646,940.61 × 253,938.81
  4. Step 4: Simplify right side
    468,796.98x = 164,283,328,644.07
  5. Step 5: Solve for x
    x = 164,283,328,644.07/468,796.98
  6. Step 6: Final answer
    x = 350,435.98

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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.