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Finding the Fourth Proportional to 567,064.14, 782,546.15 and 308,940.29

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Solution

The fourth proportional to 567,064.14, 782,546.15 and 308,940.29 is: 426,336.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,064.14 : 782,546.15 = 308,940.29 : x
  2. Step 2: Convert to fraction form
    567,064.14/782,546.15 = 308,940.29/x
  3. Step 3: Cross multiply
    567,064.14x = 782,546.15 × 308,940.29
  4. Step 4: Simplify right side
    567,064.14x = 241,760,029,061.95
  5. Step 5: Solve for x
    x = 241,760,029,061.95/567,064.14
  6. Step 6: Final answer
    x = 426,336.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.