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Finding the Fourth Proportional to 1,076.46, 1,614.72 and 460.14

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Solution

The fourth proportional to 1,076.46, 1,614.72 and 460.14 is: 690.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076.46 : 1,614.72 = 460.14 : x
  2. Step 2: Convert to fraction form
    1,076.46/1,614.72 = 460.14/x
  3. Step 3: Cross multiply
    1,076.46x = 1,614.72 × 460.14
  4. Step 4: Simplify right side
    1,076.46x = 742,997.26
  5. Step 5: Solve for x
    x = 742,997.26/1,076.46
  6. Step 6: Final answer
    x = 690.22

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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.