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Finding the Fourth Proportional to 2,906.44, 4,359.69 and 715.16

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Solution

The fourth proportional to 2,906.44, 4,359.69 and 715.16 is: 1,072.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,906.44 : 4,359.69 = 715.16 : x
  2. Step 2: Convert to fraction form
    2,906.44/4,359.69 = 715.16/x
  3. Step 3: Cross multiply
    2,906.44x = 4,359.69 × 715.16
  4. Step 4: Simplify right side
    2,906.44x = 3,117,875.90
  5. Step 5: Solve for x
    x = 3,117,875.90/2,906.44
  6. Step 6: Final answer
    x = 1,072.75

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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.