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Finding the Fourth Proportional to 702,019.47, 968,786.99 and 379,729.47

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Solution

The fourth proportional to 702,019.47, 968,786.99 and 379,729.47 is: 524,026.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,019.47 : 968,786.99 = 379,729.47 : x
  2. Step 2: Convert to fraction form
    702,019.47/968,786.99 = 379,729.47/x
  3. Step 3: Cross multiply
    702,019.47x = 968,786.99 × 379,729.47
  4. Step 4: Simplify right side
    702,019.47x = 367,876,970,255.60
  5. Step 5: Solve for x
    x = 367,876,970,255.60/702,019.47
  6. Step 6: Final answer
    x = 524,026.73

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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.