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Finding the Fourth Proportional to 941.15, 1,411.71 and 363.62

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Solution

The fourth proportional to 941.15, 1,411.71 and 363.62 is: 545.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.15 : 1,411.71 = 363.62 : x
  2. Step 2: Convert to fraction form
    941.15/1,411.71 = 363.62/x
  3. Step 3: Cross multiply
    941.15x = 1,411.71 × 363.62
  4. Step 4: Simplify right side
    941.15x = 513,325.99
  5. Step 5: Solve for x
    x = 513,325.99/941.15
  6. Step 6: Final answer
    x = 545.42

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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.