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Finding the Fourth Proportional to 1,284.04, 1,926.06 and 514

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Solution

The fourth proportional to 1,284.04, 1,926.06 and 514 is: 771

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284.04 : 1,926.06 = 514 : x
  2. Step 2: Convert to fraction form
    1,284.04/1,926.06 = 514/x
  3. Step 3: Cross multiply
    1,284.04x = 1,926.06 × 514
  4. Step 4: Simplify right side
    1,284.04x = 989,994.84
  5. Step 5: Solve for x
    x = 989,994.84/1,284.04
  6. Step 6: Final answer
    x = 771

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.