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Finding the Fourth Proportional to 1,070.58, 1,476.72 and 944.22

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Solution

The fourth proportional to 1,070.58, 1,476.72 and 944.22 is: 1,302.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070.58 : 1,476.72 = 944.22 : x
  2. Step 2: Convert to fraction form
    1,070.58/1,476.72 = 944.22/x
  3. Step 3: Cross multiply
    1,070.58x = 1,476.72 × 944.22
  4. Step 4: Simplify right side
    1,070.58x = 1,394,348.56
  5. Step 5: Solve for x
    x = 1,394,348.56/1,070.58
  6. Step 6: Final answer
    x = 1,302.42

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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.