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Finding the Fourth Proportional to 384,448.58, 576,688.58 and 131,902.73

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Solution

The fourth proportional to 384,448.58, 576,688.58 and 131,902.73 is: 197,859.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,448.58 : 576,688.58 = 131,902.73 : x
  2. Step 2: Convert to fraction form
    384,448.58/576,688.58 = 131,902.73/x
  3. Step 3: Cross multiply
    384,448.58x = 576,688.58 × 131,902.73
  4. Step 4: Simplify right side
    384,448.58x = 76,066,797,402.31
  5. Step 5: Solve for x
    x = 76,066,797,402.31/384,448.58
  6. Step 6: Final answer
    x = 197,859.48

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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.