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Finding the Fourth Proportional to 832.06, 1,148.48 and 482.68

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Solution

The fourth proportional to 832.06, 1,148.48 and 482.68 is: 666.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    832.06 : 1,148.48 = 482.68 : x
  2. Step 2: Convert to fraction form
    832.06/1,148.48 = 482.68/x
  3. Step 3: Cross multiply
    832.06x = 1,148.48 × 482.68
  4. Step 4: Simplify right side
    832.06x = 554,348.33
  5. Step 5: Solve for x
    x = 554,348.33/832.06
  6. Step 6: Final answer
    x = 666.24

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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.