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Finding the Fourth Proportional to 404,470.75, 558,371.71 and 251,558.23

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Solution

The fourth proportional to 404,470.75, 558,371.71 and 251,558.23 is: 347,276.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,470.75 : 558,371.71 = 251,558.23 : x
  2. Step 2: Convert to fraction form
    404,470.75/558,371.71 = 251,558.23/x
  3. Step 3: Cross multiply
    404,470.75x = 558,371.71 × 251,558.23
  4. Step 4: Simplify right side
    404,470.75x = 140,462,999,049.67
  5. Step 5: Solve for x
    x = 140,462,999,049.67/404,470.75
  6. Step 6: Final answer
    x = 347,276.04

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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.