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Finding the Fourth Proportional to 475,074.46, 655,601.75 and 257,282.44

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Solution

The fourth proportional to 475,074.46, 655,601.75 and 257,282.44 is: 355,049.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,074.46 : 655,601.75 = 257,282.44 : x
  2. Step 2: Convert to fraction form
    475,074.46/655,601.75 = 257,282.44/x
  3. Step 3: Cross multiply
    475,074.46x = 655,601.75 × 257,282.44
  4. Step 4: Simplify right side
    475,074.46x = 168,674,813,343.85
  5. Step 5: Solve for x
    x = 168,674,813,343.85/475,074.46
  6. Step 6: Final answer
    x = 355,049.22

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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.