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Finding the Fourth Proportional to 929.32, 1,282.43 and 536.27

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Solution

The fourth proportional to 929.32, 1,282.43 and 536.27 is: 740.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    929.32 : 1,282.43 = 536.27 : x
  2. Step 2: Convert to fraction form
    929.32/1,282.43 = 536.27/x
  3. Step 3: Cross multiply
    929.32x = 1,282.43 × 536.27
  4. Step 4: Simplify right side
    929.32x = 687,730.88
  5. Step 5: Solve for x
    x = 687,730.88/929.32
  6. Step 6: Final answer
    x = 740.03

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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.