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Finding the Fourth Proportional to 447,716.82, 617,818.08 and 254,128.56

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Solution

The fourth proportional to 447,716.82, 617,818.08 and 254,128.56 is: 350,679.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,716.82 : 617,818.08 = 254,128.56 : x
  2. Step 2: Convert to fraction form
    447,716.82/617,818.08 = 254,128.56/x
  3. Step 3: Cross multiply
    447,716.82x = 617,818.08 × 254,128.56
  4. Step 4: Simplify right side
    447,716.82x = 157,005,219,012.37
  5. Step 5: Solve for x
    x = 157,005,219,012.37/447,716.82
  6. Step 6: Final answer
    x = 350,679.74

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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.