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Finding the Fourth Proportional to 343,695.93, 515,921.08 and 273,072.57

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Solution

The fourth proportional to 343,695.93, 515,921.08 and 273,072.57 is: 409,908.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,695.93 : 515,921.08 = 273,072.57 : x
  2. Step 2: Convert to fraction form
    343,695.93/515,921.08 = 273,072.57/x
  3. Step 3: Cross multiply
    343,695.93x = 515,921.08 × 273,072.57
  4. Step 4: Simplify right side
    343,695.93x = 140,883,895,232.78
  5. Step 5: Solve for x
    x = 140,883,895,232.78/343,695.93
  6. Step 6: Final answer
    x = 409,908.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.