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Finding the Fourth Proportional to 832.24, 1,148.88 and 482.86

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Solution

The fourth proportional to 832.24, 1,148.88 and 482.86 is: 666.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    832.24 : 1,148.88 = 482.86 : x
  2. Step 2: Convert to fraction form
    832.24/1,148.88 = 482.86/x
  3. Step 3: Cross multiply
    832.24x = 1,148.88 × 482.86
  4. Step 4: Simplify right side
    832.24x = 554,748.20
  5. Step 5: Solve for x
    x = 554,748.20/832.24
  6. Step 6: Final answer
    x = 666.57

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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.