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Finding the Fourth Proportional to 560,351.88, 773,281.92 and 318,634.48

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Solution

The fourth proportional to 560,351.88, 773,281.92 and 318,634.48 is: 439,713.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,351.88 : 773,281.92 = 318,634.48 : x
  2. Step 2: Convert to fraction form
    560,351.88/773,281.92 = 318,634.48/x
  3. Step 3: Cross multiply
    560,351.88x = 773,281.92 × 318,634.48
  4. Step 4: Simplify right side
    560,351.88x = 246,394,282,472.60
  5. Step 5: Solve for x
    x = 246,394,282,472.60/560,351.88
  6. Step 6: Final answer
    x = 439,713.49

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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.