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Finding the Fourth Proportional to 573,633.64, 791,522.82 and 318,986.68

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Solution

The fourth proportional to 573,633.64, 791,522.82 and 318,986.68 is: 440,150.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,633.64 : 791,522.82 = 318,986.68 : x
  2. Step 2: Convert to fraction form
    573,633.64/791,522.82 = 318,986.68/x
  3. Step 3: Cross multiply
    573,633.64x = 791,522.82 × 318,986.68
  4. Step 4: Simplify right side
    573,633.64x = 252,485,236,496.04
  5. Step 5: Solve for x
    x = 252,485,236,496.04/573,633.64
  6. Step 6: Final answer
    x = 440,150.68

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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.