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Finding the Fourth Proportional to 929.84, 1,282.92 and 732.74

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Solution

The fourth proportional to 929.84, 1,282.92 and 732.74 is: 1,010.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    929.84 : 1,282.92 = 732.74 : x
  2. Step 2: Convert to fraction form
    929.84/1,282.92 = 732.74/x
  3. Step 3: Cross multiply
    929.84x = 1,282.92 × 732.74
  4. Step 4: Simplify right side
    929.84x = 940,046.80
  5. Step 5: Solve for x
    x = 940,046.80/929.84
  6. Step 6: Final answer
    x = 1,010.98

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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.