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Finding the Fourth Proportional to 1,104.32, 1,524 and 632.24

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Solution

The fourth proportional to 1,104.32, 1,524 and 632.24 is: 872.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,104.32 : 1,524 = 632.24 : x
  2. Step 2: Convert to fraction form
    1,104.32/1,524 = 632.24/x
  3. Step 3: Cross multiply
    1,104.32x = 1,524 × 632.24
  4. Step 4: Simplify right side
    1,104.32x = 963,533.76
  5. Step 5: Solve for x
    x = 963,533.76/1,104.32
  6. Step 6: Final answer
    x = 872.51

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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.