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Finding the Fourth Proportional to 447,354.25, 617,348.87 and 246,150.25

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Solution

The fourth proportional to 447,354.25, 617,348.87 and 246,150.25 is: 339,687.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,354.25 : 617,348.87 = 246,150.25 : x
  2. Step 2: Convert to fraction form
    447,354.25/617,348.87 = 246,150.25/x
  3. Step 3: Cross multiply
    447,354.25x = 617,348.87 × 246,150.25
  4. Step 4: Simplify right side
    447,354.25x = 151,960,578,687.72
  5. Step 5: Solve for x
    x = 151,960,578,687.72/447,354.25
  6. Step 6: Final answer
    x = 339,687.35

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Double scale
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Similar ratio
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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.