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Finding the Fourth Proportional to 447,562.53, 617,618.12 and 256,443.03

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Solution

The fourth proportional to 447,562.53, 617,618.12 and 256,443.03 is: 353,880.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,562.53 : 617,618.12 = 256,443.03 : x
  2. Step 2: Convert to fraction form
    447,562.53/617,618.12 = 256,443.03/x
  3. Step 3: Cross multiply
    447,562.53x = 617,618.12 × 256,443.03
  4. Step 4: Simplify right side
    447,562.53x = 158,383,860,793.49
  5. Step 5: Solve for x
    x = 158,383,860,793.49/447,562.53
  6. Step 6: Final answer
    x = 353,880.97

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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.