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Finding the Fourth Proportional to 383,494.80, 574,810.20 and 183,910.80

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Solution

The fourth proportional to 383,494.80, 574,810.20 and 183,910.80 is: 275,659.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,494.80 : 574,810.20 = 183,910.80 : x
  2. Step 2: Convert to fraction form
    383,494.80/574,810.20 = 183,910.80/x
  3. Step 3: Cross multiply
    383,494.80x = 574,810.20 × 183,910.80
  4. Step 4: Simplify right side
    383,494.80x = 105,713,803,730.16
  5. Step 5: Solve for x
    x = 105,713,803,730.16/383,494.80
  6. Step 6: Final answer
    x = 275,659.03

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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.