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Finding the Fourth Proportional to 404.67, 607.07 and 116.11

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Solution

The fourth proportional to 404.67, 607.07 and 116.11 is: 174.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.67 : 607.07 = 116.11 : x
  2. Step 2: Convert to fraction form
    404.67/607.07 = 116.11/x
  3. Step 3: Cross multiply
    404.67x = 607.07 × 116.11
  4. Step 4: Simplify right side
    404.67x = 70,484.80
  5. Step 5: Solve for x
    x = 70,484.80/404.67
  6. Step 6: Final answer
    x = 174.18

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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.