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Finding the Fourth Proportional to 2,253.57, 3,380.22 and 714.57

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Solution

The fourth proportional to 2,253.57, 3,380.22 and 714.57 is: 1,071.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.57 : 3,380.22 = 714.57 : x
  2. Step 2: Convert to fraction form
    2,253.57/3,380.22 = 714.57/x
  3. Step 3: Cross multiply
    2,253.57x = 3,380.22 × 714.57
  4. Step 4: Simplify right side
    2,253.57x = 2,415,403.81
  5. Step 5: Solve for x
    x = 2,415,403.81/2,253.57
  6. Step 6: Final answer
    x = 1,071.81

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1.5x scale

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.