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Finding the Fourth Proportional to 573,674.60, 791,594.16 and 318,976.76

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Solution

The fourth proportional to 573,674.60, 791,594.16 and 318,976.76 is: 440,145.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,674.60 : 791,594.16 = 318,976.76 : x
  2. Step 2: Convert to fraction form
    573,674.60/791,594.16 = 318,976.76/x
  3. Step 3: Cross multiply
    573,674.60x = 791,594.16 × 318,976.76
  4. Step 4: Simplify right side
    573,674.60x = 252,500,140,391.72
  5. Step 5: Solve for x
    x = 252,500,140,391.72/573,674.60
  6. Step 6: Final answer
    x = 440,145.23

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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.