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Finding the Fourth Proportional to 1,714.52, 2,366.03 and 928.56

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Solution

The fourth proportional to 1,714.52, 2,366.03 and 928.56 is: 1,281.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,714.52 : 2,366.03 = 928.56 : x
  2. Step 2: Convert to fraction form
    1,714.52/2,366.03 = 928.56/x
  3. Step 3: Cross multiply
    1,714.52x = 2,366.03 × 928.56
  4. Step 4: Simplify right side
    1,714.52x = 2,197,000.82
  5. Step 5: Solve for x
    x = 2,197,000.82/1,714.52
  6. Step 6: Final answer
    x = 1,281.41

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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.