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Finding the Fourth Proportional to 558,757.88, 771,234.16 and 344,077.86

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Solution

The fourth proportional to 558,757.88, 771,234.16 and 344,077.86 is: 474,918.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,757.88 : 771,234.16 = 344,077.86 : x
  2. Step 2: Convert to fraction form
    558,757.88/771,234.16 = 344,077.86/x
  3. Step 3: Cross multiply
    558,757.88x = 771,234.16 × 344,077.86
  4. Step 4: Simplify right side
    558,757.88x = 265,364,599,331.70
  5. Step 5: Solve for x
    x = 265,364,599,331.70/558,757.88
  6. Step 6: Final answer
    x = 474,918.76

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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.