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Finding the Fourth Proportional to 483,999.91, 667,920.45 and 269,135.38

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Solution

The fourth proportional to 483,999.91, 667,920.45 and 269,135.38 is: 371,407.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,999.91 : 667,920.45 = 269,135.38 : x
  2. Step 2: Convert to fraction form
    483,999.91/667,920.45 = 269,135.38/x
  3. Step 3: Cross multiply
    483,999.91x = 667,920.45 × 269,135.38
  4. Step 4: Simplify right side
    483,999.91x = 179,761,024,120.52
  5. Step 5: Solve for x
    x = 179,761,024,120.52/483,999.91
  6. Step 6: Final answer
    x = 371,407.14

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1.5x scale

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.