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Finding the Fourth Proportional to 573,446.75, 791,357.44 and 318,797.94

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Solution

The fourth proportional to 573,446.75, 791,357.44 and 318,797.94 is: 439,941.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,446.75 : 791,357.44 = 318,797.94 : x
  2. Step 2: Convert to fraction form
    573,446.75/791,357.44 = 318,797.94/x
  3. Step 3: Cross multiply
    573,446.75x = 791,357.44 × 318,797.94
  4. Step 4: Simplify right side
    573,446.75x = 252,283,121,675.67
  5. Step 5: Solve for x
    x = 252,283,121,675.67/573,446.75
  6. Step 6: Final answer
    x = 439,941.67

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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.