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Finding the Fourth Proportional to 1,162.98, 1,603.26 and 924.84

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Solution

The fourth proportional to 1,162.98, 1,603.26 and 924.84 is: 1,274.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,162.98 : 1,603.26 = 924.84 : x
  2. Step 2: Convert to fraction form
    1,162.98/1,603.26 = 924.84/x
  3. Step 3: Cross multiply
    1,162.98x = 1,603.26 × 924.84
  4. Step 4: Simplify right side
    1,162.98x = 1,482,758.98
  5. Step 5: Solve for x
    x = 1,482,758.98/1,162.98
  6. Step 6: Final answer
    x = 1,274.97

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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.