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Finding the Fourth Proportional to 494,891.15, 742,336.45 and 179,347.55

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Solution

The fourth proportional to 494,891.15, 742,336.45 and 179,347.55 is: 269,021.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,891.15 : 742,336.45 = 179,347.55 : x
  2. Step 2: Convert to fraction form
    494,891.15/742,336.45 = 179,347.55/x
  3. Step 3: Cross multiply
    494,891.15x = 742,336.45 × 179,347.55
  4. Step 4: Simplify right side
    494,891.15x = 133,136,219,423.15
  5. Step 5: Solve for x
    x = 133,136,219,423.15/494,891.15
  6. Step 6: Final answer
    x = 269,021.22

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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.