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Finding the Fourth Proportional to 517,761, 775,519.74 and 250,963.38

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Solution

The fourth proportional to 517,761, 775,519.74 and 250,963.38 is: 375,901.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,761 : 775,519.74 = 250,963.38 : x
  2. Step 2: Convert to fraction form
    517,761/775,519.74 = 250,963.38/x
  3. Step 3: Cross multiply
    517,761x = 775,519.74 × 250,963.38
  4. Step 4: Simplify right side
    517,761x = 194,627,055,207.12
  5. Step 5: Solve for x
    x = 194,627,055,207.12/517,761
  6. Step 6: Final answer
    x = 375,901.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.