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Finding the Fourth Proportional to 418,274.59, 577,222.11 and 227,289.01

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Solution

The fourth proportional to 418,274.59, 577,222.11 and 227,289.01 is: 313,660.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,274.59 : 577,222.11 = 227,289.01 : x
  2. Step 2: Convert to fraction form
    418,274.59/577,222.11 = 227,289.01/x
  3. Step 3: Cross multiply
    418,274.59x = 577,222.11 × 227,289.01
  4. Step 4: Simplify right side
    418,274.59x = 131,196,241,932.01
  5. Step 5: Solve for x
    x = 131,196,241,932.01/418,274.59
  6. Step 6: Final answer
    x = 313,660.56

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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.