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Finding the Fourth Proportional to 1,063.86, 1,595.48 and 414.44

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Solution

The fourth proportional to 1,063.86, 1,595.48 and 414.44 is: 621.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,063.86 : 1,595.48 = 414.44 : x
  2. Step 2: Convert to fraction form
    1,063.86/1,595.48 = 414.44/x
  3. Step 3: Cross multiply
    1,063.86x = 1,595.48 × 414.44
  4. Step 4: Simplify right side
    1,063.86x = 661,230.73
  5. Step 5: Solve for x
    x = 661,230.73/1,063.86
  6. Step 6: Final answer
    x = 621.54

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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.