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Finding the Fourth Proportional to 418,507.26, 577,546.59 and 227,521.38

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Solution

The fourth proportional to 418,507.26, 577,546.59 and 227,521.38 is: 313,983.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,507.26 : 577,546.59 = 227,521.38 : x
  2. Step 2: Convert to fraction form
    418,507.26/577,546.59 = 227,521.38/x
  3. Step 3: Cross multiply
    418,507.26x = 577,546.59 × 227,521.38
  4. Step 4: Simplify right side
    418,507.26x = 131,404,197,171.09
  5. Step 5: Solve for x
    x = 131,404,197,171.09/418,507.26
  6. Step 6: Final answer
    x = 313,983.08

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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.