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Finding the Fourth Proportional to 714.96, 1,074.06 and 608.04

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Solution

The fourth proportional to 714.96, 1,074.06 and 608.04 is: 913.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    714.96 : 1,074.06 = 608.04 : x
  2. Step 2: Convert to fraction form
    714.96/1,074.06 = 608.04/x
  3. Step 3: Cross multiply
    714.96x = 1,074.06 × 608.04
  4. Step 4: Simplify right side
    714.96x = 653,071.44
  5. Step 5: Solve for x
    x = 653,071.44/714.96
  6. Step 6: Final answer
    x = 913.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.