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Finding the Fourth Proportional to 443.84, 613 and 296.22

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Solution

The fourth proportional to 443.84, 613 and 296.22 is: 409.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    443.84 : 613 = 296.22 : x
  2. Step 2: Convert to fraction form
    443.84/613 = 296.22/x
  3. Step 3: Cross multiply
    443.84x = 613 × 296.22
  4. Step 4: Simplify right side
    443.84x = 181,582.86
  5. Step 5: Solve for x
    x = 181,582.86/443.84
  6. Step 6: Final answer
    x = 409.12

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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.