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Finding the Fourth Proportional to 1,686.56, 2,529.56 and 532

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Solution

The fourth proportional to 1,686.56, 2,529.56 and 532 is: 797.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686.56 : 2,529.56 = 532 : x
  2. Step 2: Convert to fraction form
    1,686.56/2,529.56 = 532/x
  3. Step 3: Cross multiply
    1,686.56x = 2,529.56 × 532
  4. Step 4: Simplify right side
    1,686.56x = 1,345,725.92
  5. Step 5: Solve for x
    x = 1,345,725.92/1,686.56
  6. Step 6: Final answer
    x = 797.91

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