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Finding the Fourth Proportional to 447,171.63, 617,096.40 and 256,185.78

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Solution

The fourth proportional to 447,171.63, 617,096.40 and 256,185.78 is: 353,536.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,171.63 : 617,096.40 = 256,185.78 : x
  2. Step 2: Convert to fraction form
    447,171.63/617,096.40 = 256,185.78/x
  3. Step 3: Cross multiply
    447,171.63x = 617,096.40 × 256,185.78
  4. Step 4: Simplify right side
    447,171.63x = 158,091,322,569.19
  5. Step 5: Solve for x
    x = 158,091,322,569.19/447,171.63
  6. Step 6: Final answer
    x = 353,536.12

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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.