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Finding the Fourth Proportional to 1,076.10, 1,612.52 and 527.60

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Solution

The fourth proportional to 1,076.10, 1,612.52 and 527.60 is: 790.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076.10 : 1,612.52 = 527.60 : x
  2. Step 2: Convert to fraction form
    1,076.10/1,612.52 = 527.60/x
  3. Step 3: Cross multiply
    1,076.10x = 1,612.52 × 527.60
  4. Step 4: Simplify right side
    1,076.10x = 850,765.55
  5. Step 5: Solve for x
    x = 850,765.55/1,076.10
  6. Step 6: Final answer
    x = 790.60

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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.