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Finding the Fourth Proportional to 441,982.40, 662,973.60 and 274,020.80

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Solution

The fourth proportional to 441,982.40, 662,973.60 and 274,020.80 is: 411,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,982.40 : 662,973.60 = 274,020.80 : x
  2. Step 2: Convert to fraction form
    441,982.40/662,973.60 = 274,020.80/x
  3. Step 3: Cross multiply
    441,982.40x = 662,973.60 × 274,020.80
  4. Step 4: Simplify right side
    441,982.40x = 181,668,556,250.88
  5. Step 5: Solve for x
    x = 181,668,556,250.88/441,982.40
  6. Step 6: Final answer
    x = 411,031.20

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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.