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Finding the Fourth Proportional to 351,610.34, 485,224.61 and 190,465.40

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Solution

The fourth proportional to 351,610.34, 485,224.61 and 190,465.40 is: 262,843.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,610.34 : 485,224.61 = 190,465.40 : x
  2. Step 2: Convert to fraction form
    351,610.34/485,224.61 = 190,465.40/x
  3. Step 3: Cross multiply
    351,610.34x = 485,224.61 × 190,465.40
  4. Step 4: Simplify right side
    351,610.34x = 92,418,496,055.04
  5. Step 5: Solve for x
    x = 92,418,496,055.04/351,610.34
  6. Step 6: Final answer
    x = 262,843.51

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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.