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Finding the Fourth Proportional to 339,234.78, 511,290.54 and 292,414.96

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Solution

The fourth proportional to 339,234.78, 511,290.54 and 292,414.96 is: 440,724.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,234.78 : 511,290.54 = 292,414.96 : x
  2. Step 2: Convert to fraction form
    339,234.78/511,290.54 = 292,414.96/x
  3. Step 3: Cross multiply
    339,234.78x = 511,290.54 × 292,414.96
  4. Step 4: Simplify right side
    339,234.78x = 149,509,002,802.48
  5. Step 5: Solve for x
    x = 149,509,002,802.48/339,234.78
  6. Step 6: Final answer
    x = 440,724.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.