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Finding the Fourth Proportional to 1,076.49, 1,614.68 and 296.49

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Solution

The fourth proportional to 1,076.49, 1,614.68 and 296.49 is: 444.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076.49 : 1,614.68 = 296.49 : x
  2. Step 2: Convert to fraction form
    1,076.49/1,614.68 = 296.49/x
  3. Step 3: Cross multiply
    1,076.49x = 1,614.68 × 296.49
  4. Step 4: Simplify right side
    1,076.49x = 478,730.20
  5. Step 5: Solve for x
    x = 478,730.20/1,076.49
  6. Step 6: Final answer
    x = 444.71

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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.