Home / 447,218.28-617,165.86-256,227.56

Finding the Fourth Proportional to 447,218.28, 617,165.86 and 256,227.56

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Solution

The fourth proportional to 447,218.28, 617,165.86 and 256,227.56 is: 353,596.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,218.28 : 617,165.86 = 256,227.56 : x
  2. Step 2: Convert to fraction form
    447,218.28/617,165.86 = 256,227.56/x
  3. Step 3: Cross multiply
    447,218.28x = 617,165.86 × 256,227.56
  4. Step 4: Simplify right side
    447,218.28x = 158,134,902,423.10
  5. Step 5: Solve for x
    x = 158,134,902,423.10/447,218.28
  6. Step 6: Final answer
    x = 353,596.69

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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.