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Finding the Fourth Proportional to 901,959.14, 1,244,655.42 and 494,039.90

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Solution

The fourth proportional to 901,959.14, 1,244,655.42 and 494,039.90 is: 681,748.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,959.14 : 1,244,655.42 = 494,039.90 : x
  2. Step 2: Convert to fraction form
    901,959.14/1,244,655.42 = 494,039.90/x
  3. Step 3: Cross multiply
    901,959.14x = 1,244,655.42 × 494,039.90
  4. Step 4: Simplify right side
    901,959.14x = 614,909,439,231.26
  5. Step 5: Solve for x
    x = 614,909,439,231.26/901,959.14
  6. Step 6: Final answer
    x = 681,748.66

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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.