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Finding the Fourth Proportional to 586,540.53, 809,442.99 and 331,886.25

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Solution

The fourth proportional to 586,540.53, 809,442.99 and 331,886.25 is: 458,012.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,540.53 : 809,442.99 = 331,886.25 : x
  2. Step 2: Convert to fraction form
    586,540.53/809,442.99 = 331,886.25/x
  3. Step 3: Cross multiply
    586,540.53x = 809,442.99 × 331,886.25
  4. Step 4: Simplify right side
    586,540.53x = 268,642,998,539.89
  5. Step 5: Solve for x
    x = 268,642,998,539.89/586,540.53
  6. Step 6: Final answer
    x = 458,012.68

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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.