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Finding the Fourth Proportional to 1,632.88, 2,253.36 and 886.85

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Solution

The fourth proportional to 1,632.88, 2,253.36 and 886.85 is: 1,223.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,632.88 : 2,253.36 = 886.85 : x
  2. Step 2: Convert to fraction form
    1,632.88/2,253.36 = 886.85/x
  3. Step 3: Cross multiply
    1,632.88x = 2,253.36 × 886.85
  4. Step 4: Simplify right side
    1,632.88x = 1,998,387.88
  5. Step 5: Solve for x
    x = 1,998,387.88/1,632.88
  6. Step 6: Final answer
    x = 1,223.84

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1.5x scale

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.