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Finding the Fourth Proportional to 392,304.56, 541,241.06 and 256,416.98

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Solution

The fourth proportional to 392,304.56, 541,241.06 and 256,416.98 is: 353,764.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,304.56 : 541,241.06 = 256,416.98 : x
  2. Step 2: Convert to fraction form
    392,304.56/541,241.06 = 256,416.98/x
  3. Step 3: Cross multiply
    392,304.56x = 541,241.06 × 256,416.98
  4. Step 4: Simplify right side
    392,304.56x = 138,783,394,068.91
  5. Step 5: Solve for x
    x = 138,783,394,068.91/392,304.56
  6. Step 6: Final answer
    x = 353,764.42

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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.