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Finding the Fourth Proportional to 1,720.44, 2,579.50 and 795.49

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Solution

The fourth proportional to 1,720.44, 2,579.50 and 795.49 is: 1,192.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.44 : 2,579.50 = 795.49 : x
  2. Step 2: Convert to fraction form
    1,720.44/2,579.50 = 795.49/x
  3. Step 3: Cross multiply
    1,720.44x = 2,579.50 × 795.49
  4. Step 4: Simplify right side
    1,720.44x = 2,051,966.46
  5. Step 5: Solve for x
    x = 2,051,966.46/1,720.44
  6. Step 6: Final answer
    x = 1,192.70

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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.