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Finding the Fourth Proportional to 1,068.08, 1,474.08 and 602.48

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Solution

The fourth proportional to 1,068.08, 1,474.08 and 602.48 is: 831.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068.08 : 1,474.08 = 602.48 : x
  2. Step 2: Convert to fraction form
    1,068.08/1,474.08 = 602.48/x
  3. Step 3: Cross multiply
    1,068.08x = 1,474.08 × 602.48
  4. Step 4: Simplify right side
    1,068.08x = 888,103.72
  5. Step 5: Solve for x
    x = 888,103.72/1,068.08
  6. Step 6: Final answer
    x = 831.50

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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.