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Finding the Fourth Proportional to 551,418.20, 827,271.30 and 177,450.20

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Solution

The fourth proportional to 551,418.20, 827,271.30 and 177,450.20 is: 266,221.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,418.20 : 827,271.30 = 177,450.20 : x
  2. Step 2: Convert to fraction form
    551,418.20/827,271.30 = 177,450.20/x
  3. Step 3: Cross multiply
    551,418.20x = 827,271.30 × 177,450.20
  4. Step 4: Simplify right side
    551,418.20x = 146,799,457,639.26
  5. Step 5: Solve for x
    x = 146,799,457,639.26/551,418.20
  6. Step 6: Final answer
    x = 266,221.64

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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.