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Finding the Fourth Proportional to 1,016.40, 1,523.92 and 467.84

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Solution

The fourth proportional to 1,016.40, 1,523.92 and 467.84 is: 701.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016.40 : 1,523.92 = 467.84 : x
  2. Step 2: Convert to fraction form
    1,016.40/1,523.92 = 467.84/x
  3. Step 3: Cross multiply
    1,016.40x = 1,523.92 × 467.84
  4. Step 4: Simplify right side
    1,016.40x = 712,950.73
  5. Step 5: Solve for x
    x = 712,950.73/1,016.40
  6. Step 6: Final answer
    x = 701.45

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Why These Related Problems?

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