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Finding the Fourth Proportional to 1,016.08, 1,402.11 and 574.02

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Solution

The fourth proportional to 1,016.08, 1,402.11 and 574.02 is: 792.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016.08 : 1,402.11 = 574.02 : x
  2. Step 2: Convert to fraction form
    1,016.08/1,402.11 = 574.02/x
  3. Step 3: Cross multiply
    1,016.08x = 1,402.11 × 574.02
  4. Step 4: Simplify right side
    1,016.08x = 804,839.18
  5. Step 5: Solve for x
    x = 804,839.18/1,016.08
  6. Step 6: Final answer
    x = 792.10

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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.