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Finding the Fourth Proportional to 499,702.56, 689,590.44 and 273,348.06

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Solution

The fourth proportional to 499,702.56, 689,590.44 and 273,348.06 is: 377,220.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,702.56 : 689,590.44 = 273,348.06 : x
  2. Step 2: Convert to fraction form
    499,702.56/689,590.44 = 273,348.06/x
  3. Step 3: Cross multiply
    499,702.56x = 689,590.44 × 273,348.06
  4. Step 4: Simplify right side
    499,702.56x = 188,498,208,968.55
  5. Step 5: Solve for x
    x = 188,498,208,968.55/499,702.56
  6. Step 6: Final answer
    x = 377,220.82

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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.