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Finding the Fourth Proportional to 401,073.10, 601,204.85 and 251,418.49

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Solution

The fourth proportional to 401,073.10, 601,204.85 and 251,418.49 is: 376,873.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,073.10 : 601,204.85 = 251,418.49 : x
  2. Step 2: Convert to fraction form
    401,073.10/601,204.85 = 251,418.49/x
  3. Step 3: Cross multiply
    401,073.10x = 601,204.85 × 251,418.49
  4. Step 4: Simplify right side
    401,073.10x = 151,154,012,807.57
  5. Step 5: Solve for x
    x = 151,154,012,807.57/401,073.10
  6. Step 6: Final answer
    x = 376,873.97

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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.