Home / 447,474.51-617,542.38-256,516.61

Finding the Fourth Proportional to 447,474.51, 617,542.38 and 256,516.61

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Solution

The fourth proportional to 447,474.51, 617,542.38 and 256,516.61 is: 354,008.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,474.51 : 617,542.38 = 256,516.61 : x
  2. Step 2: Convert to fraction form
    447,474.51/617,542.38 = 256,516.61/x
  3. Step 3: Cross multiply
    447,474.51x = 617,542.38 × 256,516.61
  4. Step 4: Simplify right side
    447,474.51x = 158,409,874,761.22
  5. Step 5: Solve for x
    x = 158,409,874,761.22/447,474.51
  6. Step 6: Final answer
    x = 354,008.71

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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.