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Finding the Fourth Proportional to 558,991.98, 771,370.02 and 317,279.48

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Solution

The fourth proportional to 558,991.98, 771,370.02 and 317,279.48 is: 437,823.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,991.98 : 771,370.02 = 317,279.48 : x
  2. Step 2: Convert to fraction form
    558,991.98/771,370.02 = 317,279.48/x
  3. Step 3: Cross multiply
    558,991.98x = 771,370.02 × 317,279.48
  4. Step 4: Simplify right side
    558,991.98x = 244,739,874,976.34
  5. Step 5: Solve for x
    x = 244,739,874,976.34/558,991.98
  6. Step 6: Final answer
    x = 437,823.59

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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.