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Finding the Fourth Proportional to 447,431.61, 617,455.71 and 246,227.61

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Solution

The fourth proportional to 447,431.61, 617,455.71 and 246,227.61 is: 339,794.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,431.61 : 617,455.71 = 246,227.61 : x
  2. Step 2: Convert to fraction form
    447,431.61/617,455.71 = 246,227.61/x
  3. Step 3: Cross multiply
    447,431.61x = 617,455.71 × 246,227.61
  4. Step 4: Simplify right side
    447,431.61x = 152,034,643,754.15
  5. Step 5: Solve for x
    x = 152,034,643,754.15/447,431.61
  6. Step 6: Final answer
    x = 339,794.15

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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.