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Finding the Fourth Proportional to 366,988.80, 550,483.20 and 227,020.80

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Solution

The fourth proportional to 366,988.80, 550,483.20 and 227,020.80 is: 340,531.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,988.80 : 550,483.20 = 227,020.80 : x
  2. Step 2: Convert to fraction form
    366,988.80/550,483.20 = 227,020.80/x
  3. Step 3: Cross multiply
    366,988.80x = 550,483.20 × 227,020.80
  4. Step 4: Simplify right side
    366,988.80x = 124,971,136,450.56
  5. Step 5: Solve for x
    x = 124,971,136,450.56/366,988.80
  6. Step 6: Final answer
    x = 340,531.20

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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.