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Finding the Fourth Proportional to 1,046.44, 1,444.98 and 992.08

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Solution

The fourth proportional to 1,046.44, 1,444.98 and 992.08 is: 1,369.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046.44 : 1,444.98 = 992.08 : x
  2. Step 2: Convert to fraction form
    1,046.44/1,444.98 = 992.08/x
  3. Step 3: Cross multiply
    1,046.44x = 1,444.98 × 992.08
  4. Step 4: Simplify right side
    1,046.44x = 1,433,535.76
  5. Step 5: Solve for x
    x = 1,433,535.76/1,046.44
  6. Step 6: Final answer
    x = 1,369.92

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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.