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Finding the Fourth Proportional to 404,471.75, 558,373.09 and 251,559.23

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Solution

The fourth proportional to 404,471.75, 558,373.09 and 251,559.23 is: 347,277.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,471.75 : 558,373.09 = 251,559.23 : x
  2. Step 2: Convert to fraction form
    404,471.75/558,373.09 = 251,559.23/x
  3. Step 3: Cross multiply
    404,471.75x = 558,373.09 × 251,559.23
  4. Step 4: Simplify right side
    404,471.75x = 140,463,904,573.12
  5. Step 5: Solve for x
    x = 140,463,904,573.12/404,471.75
  6. Step 6: Final answer
    x = 347,277.42

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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.