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Finding the Fourth Proportional to 1,095.68, 1,642.46 and 364.85

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Solution

The fourth proportional to 1,095.68, 1,642.46 and 364.85 is: 546.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095.68 : 1,642.46 = 364.85 : x
  2. Step 2: Convert to fraction form
    1,095.68/1,642.46 = 364.85/x
  3. Step 3: Cross multiply
    1,095.68x = 1,642.46 × 364.85
  4. Step 4: Simplify right side
    1,095.68x = 599,241.49
  5. Step 5: Solve for x
    x = 599,241.49/1,095.68
  6. Step 6: Final answer
    x = 546.92

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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.