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Finding the Fourth Proportional to 951.14, 1,312.62 and 531.59

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Solution

The fourth proportional to 951.14, 1,312.62 and 531.59 is: 733.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.14 : 1,312.62 = 531.59 : x
  2. Step 2: Convert to fraction form
    951.14/1,312.62 = 531.59/x
  3. Step 3: Cross multiply
    951.14x = 1,312.62 × 531.59
  4. Step 4: Simplify right side
    951.14x = 697,769.10
  5. Step 5: Solve for x
    x = 697,769.10/951.14
  6. Step 6: Final answer
    x = 733.62

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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.