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Finding the Fourth Proportional to 491,384.88, 737,257.55 and 207,146.97

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Solution

The fourth proportional to 491,384.88, 737,257.55 and 207,146.97 is: 310,796.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,384.88 : 737,257.55 = 207,146.97 : x
  2. Step 2: Convert to fraction form
    491,384.88/737,257.55 = 207,146.97/x
  3. Step 3: Cross multiply
    491,384.88x = 737,257.55 × 207,146.97
  4. Step 4: Simplify right side
    491,384.88x = 152,720,666,556.39
  5. Step 5: Solve for x
    x = 152,720,666,556.39/491,384.88
  6. Step 6: Final answer
    x = 310,796.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.