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Finding the Fourth Proportional to 558,889.67, 771,374.04 and 317,194.89

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Solution

The fourth proportional to 558,889.67, 771,374.04 and 317,194.89 is: 437,789.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,889.67 : 771,374.04 = 317,194.89 : x
  2. Step 2: Convert to fraction form
    558,889.67/771,374.04 = 317,194.89/x
  3. Step 3: Cross multiply
    558,889.67x = 771,374.04 × 317,194.89
  4. Step 4: Simplify right side
    558,889.67x = 244,675,899,684.52
  5. Step 5: Solve for x
    x = 244,675,899,684.52/558,889.67
  6. Step 6: Final answer
    x = 437,789.27

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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.