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Finding the Fourth Proportional to 1,177.65, 1,764.96 and 483.54

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Solution

The fourth proportional to 1,177.65, 1,764.96 and 483.54 is: 724.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.65 : 1,764.96 = 483.54 : x
  2. Step 2: Convert to fraction form
    1,177.65/1,764.96 = 483.54/x
  3. Step 3: Cross multiply
    1,177.65x = 1,764.96 × 483.54
  4. Step 4: Simplify right side
    1,177.65x = 853,428.76
  5. Step 5: Solve for x
    x = 853,428.76/1,177.65
  6. Step 6: Final answer
    x = 724.69

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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.