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Finding the Fourth Proportional to 451,379.97, 622,923.45 and 257,819.52

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Solution

The fourth proportional to 451,379.97, 622,923.45 and 257,819.52 is: 355,801.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,379.97 : 622,923.45 = 257,819.52 : x
  2. Step 2: Convert to fraction form
    451,379.97/622,923.45 = 257,819.52/x
  3. Step 3: Cross multiply
    451,379.97x = 622,923.45 × 257,819.52
  4. Step 4: Simplify right side
    451,379.97x = 160,601,824,875.74
  5. Step 5: Solve for x
    x = 160,601,824,875.74/451,379.97
  6. Step 6: Final answer
    x = 355,801.84

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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.