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Finding the Fourth Proportional to 383,842.80, 575,764.20 and 332,521.20

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Solution

The fourth proportional to 383,842.80, 575,764.20 and 332,521.20 is: 498,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,842.80 : 575,764.20 = 332,521.20 : x
  2. Step 2: Convert to fraction form
    383,842.80/575,764.20 = 332,521.20/x
  3. Step 3: Cross multiply
    383,842.80x = 575,764.20 × 332,521.20
  4. Step 4: Simplify right side
    383,842.80x = 191,453,802,701.04
  5. Step 5: Solve for x
    x = 191,453,802,701.04/383,842.80
  6. Step 6: Final answer
    x = 498,781.80

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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.