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Finding the Fourth Proportional to 382,618.20, 573,927.30 and 323,569.20

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Solution

The fourth proportional to 382,618.20, 573,927.30 and 323,569.20 is: 485,353.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,618.20 : 573,927.30 = 323,569.20 : x
  2. Step 2: Convert to fraction form
    382,618.20/573,927.30 = 323,569.20/x
  3. Step 3: Cross multiply
    382,618.20x = 573,927.30 × 323,569.20
  4. Step 4: Simplify right side
    382,618.20x = 185,705,197,319.16
  5. Step 5: Solve for x
    x = 185,705,197,319.16/382,618.20
  6. Step 6: Final answer
    x = 485,353.80

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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.