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Finding the Fourth Proportional to 587,076.27, 810,151.55 and 345,374.42

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Solution

The fourth proportional to 587,076.27, 810,151.55 and 345,374.42 is: 476,608.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,076.27 : 810,151.55 = 345,374.42 : x
  2. Step 2: Convert to fraction form
    587,076.27/810,151.55 = 345,374.42/x
  3. Step 3: Cross multiply
    587,076.27x = 810,151.55 × 345,374.42
  4. Step 4: Simplify right side
    587,076.27x = 279,805,619,153.61
  5. Step 5: Solve for x
    x = 279,805,619,153.61/587,076.27
  6. Step 6: Final answer
    x = 476,608.63

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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.