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Finding the Fourth Proportional to 573,659.88, 791,590.02 and 318,969.96

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Solution

The fourth proportional to 573,659.88, 791,590.02 and 318,969.96 is: 440,144.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,659.88 : 791,590.02 = 318,969.96 : x
  2. Step 2: Convert to fraction form
    573,659.88/791,590.02 = 318,969.96/x
  3. Step 3: Cross multiply
    573,659.88x = 791,590.02 × 318,969.96
  4. Step 4: Simplify right side
    573,659.88x = 252,493,437,015.80
  5. Step 5: Solve for x
    x = 252,493,437,015.80/573,659.88
  6. Step 6: Final answer
    x = 440,144.84

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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.