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Finding the Fourth Proportional to 418,174.60, 577,077.86 and 227,189.56

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Solution

The fourth proportional to 418,174.60, 577,077.86 and 227,189.56 is: 313,519.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,174.60 : 577,077.86 = 227,189.56 : x
  2. Step 2: Convert to fraction form
    418,174.60/577,077.86 = 227,189.56/x
  3. Step 3: Cross multiply
    418,174.60x = 577,077.86 × 227,189.56
  4. Step 4: Simplify right side
    418,174.60x = 131,106,065,099.14
  5. Step 5: Solve for x
    x = 131,106,065,099.14/418,174.60
  6. Step 6: Final answer
    x = 313,519.92

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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.