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Finding the Fourth Proportional to 439,404.75, 606,378.56 and 238,200.75

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Solution

The fourth proportional to 439,404.75, 606,378.56 and 238,200.75 is: 328,717.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,404.75 : 606,378.56 = 238,200.75 : x
  2. Step 2: Convert to fraction form
    439,404.75/606,378.56 = 238,200.75/x
  3. Step 3: Cross multiply
    439,404.75x = 606,378.56 × 238,200.75
  4. Step 4: Simplify right side
    439,404.75x = 144,439,826,584.92
  5. Step 5: Solve for x
    x = 144,439,826,584.92/439,404.75
  6. Step 6: Final answer
    x = 328,717.04

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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.