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Finding the Fourth Proportional to 404.84, 607.34 and 116.25

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Solution

The fourth proportional to 404.84, 607.34 and 116.25 is: 174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.84 : 607.34 = 116.25 : x
  2. Step 2: Convert to fraction form
    404.84/607.34 = 116.25/x
  3. Step 3: Cross multiply
    404.84x = 607.34 × 116.25
  4. Step 4: Simplify right side
    404.84x = 70,603.57
  5. Step 5: Solve for x
    x = 70,603.57/404.84
  6. Step 6: Final answer
    x = 174.40

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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.