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Finding the Fourth Proportional to 2,908.63, 4,363.36 and 934.32

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Solution

The fourth proportional to 2,908.63, 4,363.36 and 934.32 is: 1,401.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.63 : 4,363.36 = 934.32 : x
  2. Step 2: Convert to fraction form
    2,908.63/4,363.36 = 934.32/x
  3. Step 3: Cross multiply
    2,908.63x = 4,363.36 × 934.32
  4. Step 4: Simplify right side
    2,908.63x = 4,076,781.09
  5. Step 5: Solve for x
    x = 4,076,781.09/2,908.63
  6. Step 6: Final answer
    x = 1,401.61

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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.