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Finding the Fourth Proportional to 483,921, 667,810.98 and 271,953

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Solution

The fourth proportional to 483,921, 667,810.98 and 271,953 is: 375,295.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,921 : 667,810.98 = 271,953 : x
  2. Step 2: Convert to fraction form
    483,921/667,810.98 = 271,953/x
  3. Step 3: Cross multiply
    483,921x = 667,810.98 × 271,953
  4. Step 4: Simplify right side
    483,921x = 181,613,199,443.94
  5. Step 5: Solve for x
    x = 181,613,199,443.94/483,921
  6. Step 6: Final answer
    x = 375,295.14

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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.