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Finding the Fourth Proportional to 941.16, 1,401.96 and 893.76

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Solution

The fourth proportional to 941.16, 1,401.96 and 893.76 is: 1,331.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.16 : 1,401.96 = 893.76 : x
  2. Step 2: Convert to fraction form
    941.16/1,401.96 = 893.76/x
  3. Step 3: Cross multiply
    941.16x = 1,401.96 × 893.76
  4. Step 4: Simplify right side
    941.16x = 1,253,015.77
  5. Step 5: Solve for x
    x = 1,253,015.77/941.16
  6. Step 6: Final answer
    x = 1,331.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.