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Finding the Fourth Proportional to 539,715.56, 744,873.09 and 313,361.06

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Solution

The fourth proportional to 539,715.56, 744,873.09 and 313,361.06 is: 432,476.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,715.56 : 744,873.09 = 313,361.06 : x
  2. Step 2: Convert to fraction form
    539,715.56/744,873.09 = 313,361.06/x
  3. Step 3: Cross multiply
    539,715.56x = 744,873.09 × 313,361.06
  4. Step 4: Simplify right side
    539,715.56x = 233,414,222,910.06
  5. Step 5: Solve for x
    x = 233,414,222,910.06/539,715.56
  6. Step 6: Final answer
    x = 432,476.36

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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.