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Finding the Fourth Proportional to 515,630.46, 773,609.70 and 327,264.14

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Solution

The fourth proportional to 515,630.46, 773,609.70 and 327,264.14 is: 491,000.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,630.46 : 773,609.70 = 327,264.14 : x
  2. Step 2: Convert to fraction form
    515,630.46/773,609.70 = 327,264.14/x
  3. Step 3: Cross multiply
    515,630.46x = 773,609.70 × 327,264.14
  4. Step 4: Simplify right side
    515,630.46x = 253,174,713,166.16
  5. Step 5: Solve for x
    x = 253,174,713,166.16/515,630.46
  6. Step 6: Final answer
    x = 491,000.31

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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.