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Finding the Fourth Proportional to 492,268.89, 679,331.49 and 265,914.39

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Solution

The fourth proportional to 492,268.89, 679,331.49 and 265,914.39 is: 366,962.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,268.89 : 679,331.49 = 265,914.39 : x
  2. Step 2: Convert to fraction form
    492,268.89/679,331.49 = 265,914.39/x
  3. Step 3: Cross multiply
    492,268.89x = 679,331.49 × 265,914.39
  4. Step 4: Simplify right side
    492,268.89x = 180,644,018,771.14
  5. Step 5: Solve for x
    x = 180,644,018,771.14/492,268.89
  6. Step 6: Final answer
    x = 366,962.09

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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.