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Finding the Fourth Proportional to 1,176.62, 1,763.31 and 527

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Solution

The fourth proportional to 1,176.62, 1,763.31 and 527 is: 789.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.62 : 1,763.31 = 527 : x
  2. Step 2: Convert to fraction form
    1,176.62/1,763.31 = 527/x
  3. Step 3: Cross multiply
    1,176.62x = 1,763.31 × 527
  4. Step 4: Simplify right side
    1,176.62x = 929,264.37
  5. Step 5: Solve for x
    x = 929,264.37/1,176.62
  6. Step 6: Final answer
    x = 789.77

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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.