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Finding the Fourth Proportional to 404,471.37, 558,372.58 and 251,558.86

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Solution

The fourth proportional to 404,471.37, 558,372.58 and 251,558.86 is: 347,276.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,471.37 : 558,372.58 = 251,558.86 : x
  2. Step 2: Convert to fraction form
    404,471.37/558,372.58 = 251,558.86/x
  3. Step 3: Cross multiply
    404,471.37x = 558,372.58 × 251,558.86
  4. Step 4: Simplify right side
    404,471.37x = 140,463,565,630.40
  5. Step 5: Solve for x
    x = 140,463,565,630.40/404,471.37
  6. Step 6: Final answer
    x = 347,276.91

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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.