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Finding the Fourth Proportional to 406,481.40, 560,936.73 and 245,343.24

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Solution

The fourth proportional to 406,481.40, 560,936.73 and 245,343.24 is: 338,569.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,481.40 : 560,936.73 = 245,343.24 : x
  2. Step 2: Convert to fraction form
    406,481.40/560,936.73 = 245,343.24/x
  3. Step 3: Cross multiply
    406,481.40x = 560,936.73 × 245,343.24
  4. Step 4: Simplify right side
    406,481.40x = 137,622,034,773.21
  5. Step 5: Solve for x
    x = 137,622,034,773.21/406,481.40
  6. Step 6: Final answer
    x = 338,569.08

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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.