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Finding the Fourth Proportional to 1,687.46, 2,532.15 and 592.64

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Solution

The fourth proportional to 1,687.46, 2,532.15 and 592.64 is: 889.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687.46 : 2,532.15 = 592.64 : x
  2. Step 2: Convert to fraction form
    1,687.46/2,532.15 = 592.64/x
  3. Step 3: Cross multiply
    1,687.46x = 2,532.15 × 592.64
  4. Step 4: Simplify right side
    1,687.46x = 1,500,653.38
  5. Step 5: Solve for x
    x = 1,500,653.38/1,687.46
  6. Step 6: Final answer
    x = 889.30

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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.