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Finding the Fourth Proportional to 573,574.82, 791,528.34 and 318,923.78

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Solution

The fourth proportional to 573,574.82, 791,528.34 and 318,923.78 is: 440,112.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,574.82 : 791,528.34 = 318,923.78 : x
  2. Step 2: Convert to fraction form
    573,574.82/791,528.34 = 318,923.78/x
  3. Step 3: Cross multiply
    573,574.82x = 791,528.34 × 318,923.78
  4. Step 4: Simplify right side
    573,574.82x = 252,437,210,169.93
  5. Step 5: Solve for x
    x = 252,437,210,169.93/573,574.82
  6. Step 6: Final answer
    x = 440,112.09

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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.