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Finding the Fourth Proportional to 1,244.88, 1,716.48 and 1,048.08

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Solution

The fourth proportional to 1,244.88, 1,716.48 and 1,048.08 is: 1,445.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.88 : 1,716.48 = 1,048.08 : x
  2. Step 2: Convert to fraction form
    1,244.88/1,716.48 = 1,048.08/x
  3. Step 3: Cross multiply
    1,244.88x = 1,716.48 × 1,048.08
  4. Step 4: Simplify right side
    1,244.88x = 1,799,008.36
  5. Step 5: Solve for x
    x = 1,799,008.36/1,244.88
  6. Step 6: Final answer
    x = 1,445.13

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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.