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Finding the Fourth Proportional to 1,060.74, 1,584.63 and 844.56

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Solution

The fourth proportional to 1,060.74, 1,584.63 and 844.56 is: 1,261.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.74 : 1,584.63 = 844.56 : x
  2. Step 2: Convert to fraction form
    1,060.74/1,584.63 = 844.56/x
  3. Step 3: Cross multiply
    1,060.74x = 1,584.63 × 844.56
  4. Step 4: Simplify right side
    1,060.74x = 1,338,315.11
  5. Step 5: Solve for x
    x = 1,338,315.11/1,060.74
  6. Step 6: Final answer
    x = 1,261.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.