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Finding the Fourth Proportional to 532.22, 796.91 and 312.66

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Solution

The fourth proportional to 532.22, 796.91 and 312.66 is: 468.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.22 : 796.91 = 312.66 : x
  2. Step 2: Convert to fraction form
    532.22/796.91 = 312.66/x
  3. Step 3: Cross multiply
    532.22x = 796.91 × 312.66
  4. Step 4: Simplify right side
    532.22x = 249,160.32
  5. Step 5: Solve for x
    x = 249,160.32/532.22
  6. Step 6: Final answer
    x = 468.16

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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.