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Finding the Fourth Proportional to 1,854.44, 2,558.64 and 1,057.80

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Solution

The fourth proportional to 1,854.44, 2,558.64 and 1,057.80 is: 1,459.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,854.44 : 2,558.64 = 1,057.80 : x
  2. Step 2: Convert to fraction form
    1,854.44/2,558.64 = 1,057.80/x
  3. Step 3: Cross multiply
    1,854.44x = 2,558.64 × 1,057.80
  4. Step 4: Simplify right side
    1,854.44x = 2,706,529.39
  5. Step 5: Solve for x
    x = 2,706,529.39/1,854.44
  6. Step 6: Final answer
    x = 1,459.49

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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.