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Finding the Fourth Proportional to 1,425, 1,966.52 and 804

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Solution

The fourth proportional to 1,425, 1,966.52 and 804 is: 1,109.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425 : 1,966.52 = 804 : x
  2. Step 2: Convert to fraction form
    1,425/1,966.52 = 804/x
  3. Step 3: Cross multiply
    1,425x = 1,966.52 × 804
  4. Step 4: Simplify right side
    1,425x = 1,581,082.08
  5. Step 5: Solve for x
    x = 1,581,082.08/1,425
  6. Step 6: Final answer
    x = 1,109.53

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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.