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Finding the Fourth Proportional to 832, 1,148.16 and 482.71

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Solution

The fourth proportional to 832, 1,148.16 and 482.71 is: 666.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    832 : 1,148.16 = 482.71 : x
  2. Step 2: Convert to fraction form
    832/1,148.16 = 482.71/x
  3. Step 3: Cross multiply
    832x = 1,148.16 × 482.71
  4. Step 4: Simplify right side
    832x = 554,228.31
  5. Step 5: Solve for x
    x = 554,228.31/832
  6. Step 6: Final answer
    x = 666.14

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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.