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Finding the Fourth Proportional to 1,363.04, 2,043.12 and 632

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Solution

The fourth proportional to 1,363.04, 2,043.12 and 632 is: 947.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363.04 : 2,043.12 = 632 : x
  2. Step 2: Convert to fraction form
    1,363.04/2,043.12 = 632/x
  3. Step 3: Cross multiply
    1,363.04x = 2,043.12 × 632
  4. Step 4: Simplify right side
    1,363.04x = 1,291,251.84
  5. Step 5: Solve for x
    x = 1,291,251.84/1,363.04
  6. Step 6: Final answer
    x = 947.33

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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.