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Finding the Fourth Proportional to 1,714.84, 2,572.56 and 674.60

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Solution

The fourth proportional to 1,714.84, 2,572.56 and 674.60 is: 1,012.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,714.84 : 2,572.56 = 674.60 : x
  2. Step 2: Convert to fraction form
    1,714.84/2,572.56 = 674.60/x
  3. Step 3: Cross multiply
    1,714.84x = 2,572.56 × 674.60
  4. Step 4: Simplify right side
    1,714.84x = 1,735,436.11
  5. Step 5: Solve for x
    x = 1,735,436.11/1,714.84
  6. Step 6: Final answer
    x = 1,012.01

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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.