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Finding the Fourth Proportional to 393,124.63, 588,800.91 and 275,321.88

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Solution

The fourth proportional to 393,124.63, 588,800.91 and 275,321.88 is: 412,362.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,124.63 : 588,800.91 = 275,321.88 : x
  2. Step 2: Convert to fraction form
    393,124.63/588,800.91 = 275,321.88/x
  3. Step 3: Cross multiply
    393,124.63x = 588,800.91 × 275,321.88
  4. Step 4: Simplify right side
    393,124.63x = 162,109,773,486.91
  5. Step 5: Solve for x
    x = 162,109,773,486.91/393,124.63
  6. Step 6: Final answer
    x = 412,362.29

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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.