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Finding the Fourth Proportional to 418,573.05, 577,614.89 and 227,586.60

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Solution

The fourth proportional to 418,573.05, 577,614.89 and 227,586.60 is: 314,060.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,573.05 : 577,614.89 = 227,586.60 : x
  2. Step 2: Convert to fraction form
    418,573.05/577,614.89 = 227,586.60/x
  3. Step 3: Cross multiply
    418,573.05x = 577,614.89 × 227,586.60
  4. Step 4: Simplify right side
    418,573.05x = 131,457,407,786.54
  5. Step 5: Solve for x
    x = 131,457,407,786.54/418,573.05
  6. Step 6: Final answer
    x = 314,060.85

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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.