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Finding the Fourth Proportional to 404,474.20, 558,285.42 and 234,763

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Solution

The fourth proportional to 404,474.20, 558,285.42 and 234,763 is: 324,037.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,474.20 : 558,285.42 = 234,763 : x
  2. Step 2: Convert to fraction form
    404,474.20/558,285.42 = 234,763/x
  3. Step 3: Cross multiply
    404,474.20x = 558,285.42 × 234,763
  4. Step 4: Simplify right side
    404,474.20x = 131,064,760,055.46
  5. Step 5: Solve for x
    x = 131,064,760,055.46/404,474.20
  6. Step 6: Final answer
    x = 324,037.38

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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.