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Finding the Fourth Proportional to 482.84, 723.87 and 194

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Solution

The fourth proportional to 482.84, 723.87 and 194 is: 290.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.84 : 723.87 = 194 : x
  2. Step 2: Convert to fraction form
    482.84/723.87 = 194/x
  3. Step 3: Cross multiply
    482.84x = 723.87 × 194
  4. Step 4: Simplify right side
    482.84x = 140,430.78
  5. Step 5: Solve for x
    x = 140,430.78/482.84
  6. Step 6: Final answer
    x = 290.84

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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.