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Finding the Fourth Proportional to 383,455.89, 529,192.24 and 211,373.62

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Solution

The fourth proportional to 383,455.89, 529,192.24 and 211,373.62 is: 291,708.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,455.89 : 529,192.24 = 211,373.62 : x
  2. Step 2: Convert to fraction form
    383,455.89/529,192.24 = 211,373.62/x
  3. Step 3: Cross multiply
    383,455.89x = 529,192.24 × 211,373.62
  4. Step 4: Simplify right side
    383,455.89x = 111,857,277,593.29
  5. Step 5: Solve for x
    x = 111,857,277,593.29/383,455.89
  6. Step 6: Final answer
    x = 291,708.33

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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.