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Finding the Fourth Proportional to 1,176.18, 1,765.10 and 483.48

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Solution

The fourth proportional to 1,176.18, 1,765.10 and 483.48 is: 725.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.18 : 1,765.10 = 483.48 : x
  2. Step 2: Convert to fraction form
    1,176.18/1,765.10 = 483.48/x
  3. Step 3: Cross multiply
    1,176.18x = 1,765.10 × 483.48
  4. Step 4: Simplify right side
    1,176.18x = 853,387.34
  5. Step 5: Solve for x
    x = 853,387.34/1,176.18
  6. Step 6: Final answer
    x = 725.56

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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.