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Finding the Fourth Proportional to 944.98, 1,417.36 and 251.70

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Solution

The fourth proportional to 944.98, 1,417.36 and 251.70 is: 377.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.98 : 1,417.36 = 251.70 : x
  2. Step 2: Convert to fraction form
    944.98/1,417.36 = 251.70/x
  3. Step 3: Cross multiply
    944.98x = 1,417.36 × 251.70
  4. Step 4: Simplify right side
    944.98x = 356,744.71
  5. Step 5: Solve for x
    x = 356,744.71/944.98
  6. Step 6: Final answer
    x = 377.52

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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.