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Finding the Fourth Proportional to 1,402.82, 1,934.84 and 929.88

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Solution

The fourth proportional to 1,402.82, 1,934.84 and 929.88 is: 1,282.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402.82 : 1,934.84 = 929.88 : x
  2. Step 2: Convert to fraction form
    1,402.82/1,934.84 = 929.88/x
  3. Step 3: Cross multiply
    1,402.82x = 1,934.84 × 929.88
  4. Step 4: Simplify right side
    1,402.82x = 1,799,169.02
  5. Step 5: Solve for x
    x = 1,799,169.02/1,402.82
  6. Step 6: Final answer
    x = 1,282.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.