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Finding the Fourth Proportional to 1,048.22, 1,446.33 and 675.15

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Solution

The fourth proportional to 1,048.22, 1,446.33 and 675.15 is: 931.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048.22 : 1,446.33 = 675.15 : x
  2. Step 2: Convert to fraction form
    1,048.22/1,446.33 = 675.15/x
  3. Step 3: Cross multiply
    1,048.22x = 1,446.33 × 675.15
  4. Step 4: Simplify right side
    1,048.22x = 976,491.15
  5. Step 5: Solve for x
    x = 976,491.15/1,048.22
  6. Step 6: Final answer
    x = 931.57

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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.