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Finding the Fourth Proportional to 951.10, 1,312.16 and 577.94

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Solution

The fourth proportional to 951.10, 1,312.16 and 577.94 is: 797.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.10 : 1,312.16 = 577.94 : x
  2. Step 2: Convert to fraction form
    951.10/1,312.16 = 577.94/x
  3. Step 3: Cross multiply
    951.10x = 1,312.16 × 577.94
  4. Step 4: Simplify right side
    951.10x = 758,340.30
  5. Step 5: Solve for x
    x = 758,340.30/951.10
  6. Step 6: Final answer
    x = 797.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.