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Finding the Fourth Proportional to 511,374.82, 705,540.82 and 296,471.98

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Solution

The fourth proportional to 511,374.82, 705,540.82 and 296,471.98 is: 409,040.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,374.82 : 705,540.82 = 296,471.98 : x
  2. Step 2: Convert to fraction form
    511,374.82/705,540.82 = 296,471.98/x
  3. Step 3: Cross multiply
    511,374.82x = 705,540.82 × 296,471.98
  4. Step 4: Simplify right side
    511,374.82x = 209,173,083,876.22
  5. Step 5: Solve for x
    x = 209,173,083,876.22/511,374.82
  6. Step 6: Final answer
    x = 409,040.64

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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.