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Finding the Fourth Proportional to 914.96, 1,377.92 and 833.04

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Solution

The fourth proportional to 914.96, 1,377.92 and 833.04 is: 1,254.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    914.96 : 1,377.92 = 833.04 : x
  2. Step 2: Convert to fraction form
    914.96/1,377.92 = 833.04/x
  3. Step 3: Cross multiply
    914.96x = 1,377.92 × 833.04
  4. Step 4: Simplify right side
    914.96x = 1,147,862.48
  5. Step 5: Solve for x
    x = 1,147,862.48/914.96
  6. Step 6: Final answer
    x = 1,254.55

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.