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Finding the Fourth Proportional to 538,640.01, 743,325.12 and 293,623.47

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Solution

The fourth proportional to 538,640.01, 743,325.12 and 293,623.47 is: 405,201.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,640.01 : 743,325.12 = 293,623.47 : x
  2. Step 2: Convert to fraction form
    538,640.01/743,325.12 = 293,623.47/x
  3. Step 3: Cross multiply
    538,640.01x = 743,325.12 × 293,623.47
  4. Step 4: Simplify right side
    538,640.01x = 218,257,701,072.57
  5. Step 5: Solve for x
    x = 218,257,701,072.57/538,640.01
  6. Step 6: Final answer
    x = 405,201.43

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1.5x scale

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.