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Finding the Third Proportional to 590 and 1,439

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Solution

The third proportional to 590 and 1,439 is: 3,509.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    590 : 1,439 = 1,439 : x
  2. Step 2: Convert to fraction form
    590/1,439 = 1,439/x
  3. Step 3: Cross multiply
    590x = 1,439 × 1,439
  4. Step 4: Simplify right side
    590x = 2,070,721
  5. Step 5: Solve for x
    x = 2,070,721/590
  6. Step 6: Final answer
    x = 3,509.70

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Why These Related Problems?

These problems maintain the same ratio (2.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.