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Finding the Fourth Proportional to 402,369.98, 555,062.37 and 273,315.11

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Solution

The fourth proportional to 402,369.98, 555,062.37 and 273,315.11 is: 377,033.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,369.98 : 555,062.37 = 273,315.11 : x
  2. Step 2: Convert to fraction form
    402,369.98/555,062.37 = 273,315.11/x
  3. Step 3: Cross multiply
    402,369.98x = 555,062.37 × 273,315.11
  4. Step 4: Simplify right side
    402,369.98x = 151,706,932,713.41
  5. Step 5: Solve for x
    x = 151,706,932,713.41/402,369.98
  6. Step 6: Final answer
    x = 377,033.43

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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.