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Finding the Fourth Proportional to 322,057.49, 482,832.16 and 203,478.89

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Solution

The fourth proportional to 322,057.49, 482,832.16 and 203,478.89 is: 305,057.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,057.49 : 482,832.16 = 203,478.89 : x
  2. Step 2: Convert to fraction form
    322,057.49/482,832.16 = 203,478.89/x
  3. Step 3: Cross multiply
    322,057.49x = 482,832.16 × 203,478.89
  4. Step 4: Simplify right side
    322,057.49x = 98,246,149,050.24
  5. Step 5: Solve for x
    x = 98,246,149,050.24/322,057.49
  6. Step 6: Final answer
    x = 305,057.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.