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Finding the Fourth Proportional to 555,964.19, 767,162.00 and 394,760.42

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Solution

The fourth proportional to 555,964.19, 767,162.00 and 394,760.42 is: 544,720.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,964.19 : 767,162.00 = 394,760.42 : x
  2. Step 2: Convert to fraction form
    555,964.19/767,162.00 = 394,760.42/x
  3. Step 3: Cross multiply
    555,964.19x = 767,162.00 × 394,760.42
  4. Step 4: Simplify right side
    555,964.19x = 302,845,187,518.43
  5. Step 5: Solve for x
    x = 302,845,187,518.43/555,964.19
  6. Step 6: Final answer
    x = 544,720.68

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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.