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Finding the Fourth Proportional to 382,624.90, 573,246.15 and 327,328.90

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Solution

The fourth proportional to 382,624.90, 573,246.15 and 327,328.90 is: 490,402.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,624.90 : 573,246.15 = 327,328.90 : x
  2. Step 2: Convert to fraction form
    382,624.90/573,246.15 = 327,328.90/x
  3. Step 3: Cross multiply
    382,624.90x = 573,246.15 × 327,328.90
  4. Step 4: Simplify right side
    382,624.90x = 187,640,031,708.74
  5. Step 5: Solve for x
    x = 187,640,031,708.74/382,624.90
  6. Step 6: Final answer
    x = 490,402.04

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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.