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Finding the Fourth Proportional to 1,173.60, 1,761.12 and 597.60

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Solution

The fourth proportional to 1,173.60, 1,761.12 and 597.60 is: 896.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173.60 : 1,761.12 = 597.60 : x
  2. Step 2: Convert to fraction form
    1,173.60/1,761.12 = 597.60/x
  3. Step 3: Cross multiply
    1,173.60x = 1,761.12 × 597.60
  4. Step 4: Simplify right side
    1,173.60x = 1,052,445.31
  5. Step 5: Solve for x
    x = 1,052,445.31/1,173.60
  6. Step 6: Final answer
    x = 896.77

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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.