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Finding the Fourth Proportional to 580,663.62, 801,316.42 and 326,015.42

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Solution

The fourth proportional to 580,663.62, 801,316.42 and 326,015.42 is: 449,901.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,663.62 : 801,316.42 = 326,015.42 : x
  2. Step 2: Convert to fraction form
    580,663.62/801,316.42 = 326,015.42/x
  3. Step 3: Cross multiply
    580,663.62x = 801,316.42 × 326,015.42
  4. Step 4: Simplify right side
    580,663.62x = 261,241,509,219.20
  5. Step 5: Solve for x
    x = 261,241,509,219.20/580,663.62
  6. Step 6: Final answer
    x = 449,901.63

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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.