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Finding the Fourth Proportional to 265,972.72, 395,992.44 and 262,249.96

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Solution

The fourth proportional to 265,972.72, 395,992.44 and 262,249.96 is: 390,449.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,972.72 : 395,992.44 = 262,249.96 : x
  2. Step 2: Convert to fraction form
    265,972.72/395,992.44 = 262,249.96/x
  3. Step 3: Cross multiply
    265,972.72x = 395,992.44 × 262,249.96
  4. Step 4: Simplify right side
    265,972.72x = 103,849,001,550.30
  5. Step 5: Solve for x
    x = 103,849,001,550.30/265,972.72
  6. Step 6: Final answer
    x = 390,449.82

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.