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Finding the Fourth Proportional to 535,672.13, 739,238.69 and 293,940.59

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Solution

The fourth proportional to 535,672.13, 739,238.69 and 293,940.59 is: 405,644.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,672.13 : 739,238.69 = 293,940.59 : x
  2. Step 2: Convert to fraction form
    535,672.13/739,238.69 = 293,940.59/x
  3. Step 3: Cross multiply
    535,672.13x = 739,238.69 × 293,940.59
  4. Step 4: Simplify right side
    535,672.13x = 217,292,256,689.43
  5. Step 5: Solve for x
    x = 217,292,256,689.43/535,672.13
  6. Step 6: Final answer
    x = 405,644.13

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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.