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Finding the Fourth Proportional to 487,441.44, 672,656.59 and 269,644.44

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Solution

The fourth proportional to 487,441.44, 672,656.59 and 269,644.44 is: 372,102.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,441.44 : 672,656.59 = 269,644.44 : x
  2. Step 2: Convert to fraction form
    487,441.44/672,656.59 = 269,644.44/x
  3. Step 3: Cross multiply
    487,441.44x = 672,656.59 × 269,644.44
  4. Step 4: Simplify right side
    487,441.44x = 181,378,109,522.86
  5. Step 5: Solve for x
    x = 181,378,109,522.86/487,441.44
  6. Step 6: Final answer
    x = 372,102.36

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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.