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Finding the Fourth Proportional to 1,182.04, 1,773.06 and 316.42

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Solution

The fourth proportional to 1,182.04, 1,773.06 and 316.42 is: 474.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182.04 : 1,773.06 = 316.42 : x
  2. Step 2: Convert to fraction form
    1,182.04/1,773.06 = 316.42/x
  3. Step 3: Cross multiply
    1,182.04x = 1,773.06 × 316.42
  4. Step 4: Simplify right side
    1,182.04x = 561,031.65
  5. Step 5: Solve for x
    x = 561,031.65/1,182.04
  6. Step 6: Final answer
    x = 474.63

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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.