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Finding the Fourth Proportional to 438,515.36, 605,153.04 and 247,531.04

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Solution

The fourth proportional to 438,515.36, 605,153.04 and 247,531.04 is: 341,593.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,515.36 : 605,153.04 = 247,531.04 : x
  2. Step 2: Convert to fraction form
    438,515.36/605,153.04 = 247,531.04/x
  3. Step 3: Cross multiply
    438,515.36x = 605,153.04 × 247,531.04
  4. Step 4: Simplify right side
    438,515.36x = 149,794,161,350.36
  5. Step 5: Solve for x
    x = 149,794,161,350.36/438,515.36
  6. Step 6: Final answer
    x = 341,593.88

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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.