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Finding the Fourth Proportional to 1,179.48, 1,768.12 and 529.96

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Solution

The fourth proportional to 1,179.48, 1,768.12 and 529.96 is: 794.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179.48 : 1,768.12 = 529.96 : x
  2. Step 2: Convert to fraction form
    1,179.48/1,768.12 = 529.96/x
  3. Step 3: Cross multiply
    1,179.48x = 1,768.12 × 529.96
  4. Step 4: Simplify right side
    1,179.48x = 937,032.88
  5. Step 5: Solve for x
    x = 937,032.88/1,179.48
  6. Step 6: Final answer
    x = 794.45

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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.