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Finding the Fourth Proportional to 339,226.78, 511,278.48 and 292,406.96

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Solution

The fourth proportional to 339,226.78, 511,278.48 and 292,406.96 is: 440,712.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,226.78 : 511,278.48 = 292,406.96 : x
  2. Step 2: Convert to fraction form
    339,226.78/511,278.48 = 292,406.96/x
  3. Step 3: Cross multiply
    339,226.78x = 511,278.48 × 292,406.96
  4. Step 4: Simplify right side
    339,226.78x = 149,501,382,031.79
  5. Step 5: Solve for x
    x = 149,501,382,031.79/339,226.78
  6. Step 6: Final answer
    x = 440,712.21

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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.