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Finding the Fourth Proportional to 573,840.80, 791,889.56 and 392,546.60

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Solution

The fourth proportional to 573,840.80, 791,889.56 and 392,546.60 is: 541,706.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,840.80 : 791,889.56 = 392,546.60 : x
  2. Step 2: Convert to fraction form
    573,840.80/791,889.56 = 392,546.60/x
  3. Step 3: Cross multiply
    573,840.80x = 791,889.56 × 392,546.60
  4. Step 4: Simplify right side
    573,840.80x = 310,853,554,353.50
  5. Step 5: Solve for x
    x = 310,853,554,353.50/573,840.80
  6. Step 6: Final answer
    x = 541,706.96

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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.