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Finding the Fourth Proportional to 1,046.58, 1,568.49 and 936.24

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Solution

The fourth proportional to 1,046.58, 1,568.49 and 936.24 is: 1,403.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046.58 : 1,568.49 = 936.24 : x
  2. Step 2: Convert to fraction form
    1,046.58/1,568.49 = 936.24/x
  3. Step 3: Cross multiply
    1,046.58x = 1,568.49 × 936.24
  4. Step 4: Simplify right side
    1,046.58x = 1,468,483.08
  5. Step 5: Solve for x
    x = 1,468,483.08/1,046.58
  6. Step 6: Final answer
    x = 1,403.13

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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.