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Finding the Fourth Proportional to 492,231.72, 679,279.74 and 265,877.22

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Solution

The fourth proportional to 492,231.72, 679,279.74 and 265,877.22 is: 366,910.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,231.72 : 679,279.74 = 265,877.22 : x
  2. Step 2: Convert to fraction form
    492,231.72/679,279.74 = 265,877.22/x
  3. Step 3: Cross multiply
    492,231.72x = 679,279.74 × 265,877.22
  4. Step 4: Simplify right side
    492,231.72x = 180,605,008,873.52
  5. Step 5: Solve for x
    x = 180,605,008,873.52/492,231.72
  6. Step 6: Final answer
    x = 366,910.55

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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.