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Finding the Fourth Proportional to 1,173.52, 1,760.67 and 557.16

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Solution

The fourth proportional to 1,173.52, 1,760.67 and 557.16 is: 835.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173.52 : 1,760.67 = 557.16 : x
  2. Step 2: Convert to fraction form
    1,173.52/1,760.67 = 557.16/x
  3. Step 3: Cross multiply
    1,173.52x = 1,760.67 × 557.16
  4. Step 4: Simplify right side
    1,173.52x = 980,978.20
  5. Step 5: Solve for x
    x = 980,978.20/1,173.52
  6. Step 6: Final answer
    x = 835.93

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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.