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Finding the Fourth Proportional to 580,290.46, 800,858.39 and 325,642.66

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Solution

The fourth proportional to 580,290.46, 800,858.39 and 325,642.66 is: 449,419.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,290.46 : 800,858.39 = 325,642.66 : x
  2. Step 2: Convert to fraction form
    580,290.46/800,858.39 = 325,642.66/x
  3. Step 3: Cross multiply
    580,290.46x = 800,858.39 × 325,642.66
  4. Step 4: Simplify right side
    580,290.46x = 260,793,652,772.56
  5. Step 5: Solve for x
    x = 260,793,652,772.56/580,290.46
  6. Step 6: Final answer
    x = 449,419.16

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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.