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Finding the Fourth Proportional to 1,068.26, 1,474.14 and 602.48

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Solution

The fourth proportional to 1,068.26, 1,474.14 and 602.48 is: 831.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068.26 : 1,474.14 = 602.48 : x
  2. Step 2: Convert to fraction form
    1,068.26/1,474.14 = 602.48/x
  3. Step 3: Cross multiply
    1,068.26x = 1,474.14 × 602.48
  4. Step 4: Simplify right side
    1,068.26x = 888,139.87
  5. Step 5: Solve for x
    x = 888,139.87/1,068.26
  6. Step 6: Final answer
    x = 831.39

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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.