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Finding the Fourth Proportional to 1,052.24, 1,451.64 and 632.48

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Solution

The fourth proportional to 1,052.24, 1,451.64 and 632.48 is: 872.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,052.24 : 1,451.64 = 632.48 : x
  2. Step 2: Convert to fraction form
    1,052.24/1,451.64 = 632.48/x
  3. Step 3: Cross multiply
    1,052.24x = 1,451.64 × 632.48
  4. Step 4: Simplify right side
    1,052.24x = 918,133.27
  5. Step 5: Solve for x
    x = 918,133.27/1,052.24
  6. Step 6: Final answer
    x = 872.55

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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.