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Finding the Fourth Proportional to 951.24, 1,427.56 and 374.28

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Solution

The fourth proportional to 951.24, 1,427.56 and 374.28 is: 561.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.24 : 1,427.56 = 374.28 : x
  2. Step 2: Convert to fraction form
    951.24/1,427.56 = 374.28/x
  3. Step 3: Cross multiply
    951.24x = 1,427.56 × 374.28
  4. Step 4: Simplify right side
    951.24x = 534,307.16
  5. Step 5: Solve for x
    x = 534,307.16/951.24
  6. Step 6: Final answer
    x = 561.70

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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.