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Finding the Fourth Proportional to 1,173.90, 1,760.94 and 524.70

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Solution

The fourth proportional to 1,173.90, 1,760.94 and 524.70 is: 787.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173.90 : 1,760.94 = 524.70 : x
  2. Step 2: Convert to fraction form
    1,173.90/1,760.94 = 524.70/x
  3. Step 3: Cross multiply
    1,173.90x = 1,760.94 × 524.70
  4. Step 4: Simplify right side
    1,173.90x = 923,965.22
  5. Step 5: Solve for x
    x = 923,965.22/1,173.90
  6. Step 6: Final answer
    x = 787.09

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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.