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Finding the Fourth Proportional to 1,589.04, 2,192.78 and 925.85

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Solution

The fourth proportional to 1,589.04, 2,192.78 and 925.85 is: 1,277.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.04 : 2,192.78 = 925.85 : x
  2. Step 2: Convert to fraction form
    1,589.04/2,192.78 = 925.85/x
  3. Step 3: Cross multiply
    1,589.04x = 2,192.78 × 925.85
  4. Step 4: Simplify right side
    1,589.04x = 2,030,169.77
  5. Step 5: Solve for x
    x = 2,030,169.77/1,589.04
  6. Step 6: Final answer
    x = 1,277.61

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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.