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Finding the Fourth Proportional to 389,513.49, 582,732.95 and 295,015.95

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Solution

The fourth proportional to 389,513.49, 582,732.95 and 295,015.95 is: 441,359.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,513.49 : 582,732.95 = 295,015.95 : x
  2. Step 2: Convert to fraction form
    389,513.49/582,732.95 = 295,015.95/x
  3. Step 3: Cross multiply
    389,513.49x = 582,732.95 × 295,015.95
  4. Step 4: Simplify right side
    389,513.49x = 171,915,514,840.55
  5. Step 5: Solve for x
    x = 171,915,514,840.55/389,513.49
  6. Step 6: Final answer
    x = 441,359.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.